For questions spanning a significant proportion of the 20th century. Questions focused on the latter decades should consider using the contemporary-histroy tag. Individual tags exist for specific decades.

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Why was Tsesarevich Alexei's hemophilia a state secret?

Alexei inherited hemophilia from his mother Alexandra, a condition that could be traced back to her maternal grandmother Queen Victoria. In 2009 genetic analysis determined specifically that he ...
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6answers
296 views

Has there been other settlements in occupied territories in recent history?

The issue of Israeli settlements in the West Bank (and other territories) is quite controversial, including its legality and its impact on the peace process. I'm wondering if there was any similar ...
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5answers
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Why did the Germans fall behind the Americans in the development of the atomic bomb after an initial lead?

I actually know certain facts about this matter, but am seeking guidance in interpreting these facts into "theories." 1) Theory 1, Economic: The Americans spent something like $2 billion (in money of ...
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1answer
79 views

First eastbound transcontinental flight departed from…?

On Feb. 8th, 1912, the first eastbound US transcontinental flight landed in Jacksonville, FL. After several Google searches, I can't find anything that says where the flight departed from. So where ...
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3answers
9k views

How did Israel win the Six-Day War?

Considering Israel fought several Arab countries, which had troops largely outnumbering the Israeli, how did they manage to win the war decisively, with much fewer casualties than the Arab countries? ...
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4answers
303 views

Why did email use develop in tandem with the internet, rather than other technologies?

During the 1980s, I envisioned a (primitive) version of email that would come off telex machines. That is, a person would sit down at a keyboard, create a document, store it on a cartridge, stick the ...
8
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1answer
540 views

How did the Falasha make contact with Jews outside Ethiopia?

I just read a book about an expedition to Ethiopia, The Last of Free Africa, published 1928. The author Gordon MacCreagh writes: An astounding fact which should be of absorbing interest to Jews ...
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3answers
3k views

Did either of the World Wars involve South or Central America?

Were any South or Central American nations besides Brazil involved (not necessarily officially) in either of the World Wars? If any were, I'd appreciate information on their degree of involvement.
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3answers
192 views

Was it impossible for the Germans to arrange a plane to East Asia for Subhas Bose?

Bose's journey from Germany to Singapore by submarine was a well-remarked incident of World War II history. But what was the need for the Germans or the Italians to use a submarine to transfer a ...
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7answers
6k views

Why did Chamberlain act to appease Hitler leading up to the outbreak of World War 2?

There are accounts that British Prime Minister Chamberlain sought to appease Hitler because he just didn't want Britain involved in a war at that time. Others also argue that Chamberlain was naive and ...
10
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1answer
333 views

Which Japanese military officers helped Ho Chi Minh?

According to Wikipedia, in 1946 during negotiations between the French and Ho Chi Minh, One demand by the French was the return to French custody of a number of Japanese military officers (who had ...
6
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2answers
530 views

What were Chiang Kai-shek's biggest strategic blunders during the Second Sino-Japanese war?

Just as it is often said that Operation Barbarossa is Hitler's biggest strategic blunder (either the whole thing, its timing or execution), what were Chiang Kai-shek's biggest strategic blunders in ...
11
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2answers
131k views

How many troops died on D-day?

How many troops (allied and axis) died at Normandy beach on June 6th, 1944? I've searched all over the internet, but can't find an accurate number.
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1answer
1k views

In WW2, which midget submarine program was the most successful?

In WW2, which midget submarine program was the most successful? I know at least Great Britain and Japan had midget submarines and used them during the course of the conflict. Which WW2 combatant had ...
8
votes
1answer
219 views

What is Poosball, an early 1900s women's team sport?

My girlfriend recently showed me a 1908 yearbook in which several women are marked as playing "Poos-ball" or "Poosball." An internet search for this reveals mostly misspellings of "Foosball," however, ...
5
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1answer
173 views

Pre-1950s views of West European Socialist parties on the welfare state

The eminent Robert Paxton writes in a recent article, somewhat in passing: Continental European Marxists opposed piecemeal welfare measures as likely to dilute worker militancy without changing ...
9
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1answer
544 views

Who was head of Academy of Fine Arts Vienna in 1907-1908

Do we know the names of people who would have made the decision not to admit Hitler in 1907 and 1908? Who was President of the Academy?
3
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1answer
212 views

History of the Changes and Developments in Types of Urban Renewal Projects

Urban renewal projects defined by Wikipedia as "a program of land redevelopment in areas of moderate to high density urban land use" started in the 19th century with two very different rationales. In ...
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2answers
1k views

Why does the map of Jordan look as it does?

Most countries land borders are somewhat rounded, and it's easy to guess why - it's eazy to defend a rounded shape, and it's hard to defend "bulges" because it can be easily surrounded and occupied. ...
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4answers
731 views

How common were horses at the beginning of the 20th century?

From the late 1800s to the early 1900s, in North America and Australia, how common were horses? Was it easy for every man or boy to own a decent riding horse, or were they relatively expensive and ...
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3answers
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6
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2answers
204 views

Did Engels and Welles ever call for the extermination of Basques and Serbs?

Someone in some scribble in a matter-of-fact way made this assertion. Is it based on fact? Here's the original quote (in Russian) and its googletrans + my light fixing: Фридрих Энгельс упоминал о ...
11
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3answers
474 views

What was (if at all) Hitler's Plan B if Molotov-Ribbentrop had not worked out?

As we know, Nazi Germany and the Soviet Union amicably agreed to attack Poland and to share it between themselves. Did Hitler and his staff have a detailed or formal contingency plan in case the ...
4
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1answer
128 views

Where can I find more information about this use of Yakuza against a demonstration in 1960?

This (german) article states that in 1960 Japan's President Nobosuke Kishi hired 28000 Yakuza as thugs against an anti-American demonstration. I find nothing indicating this in the wikipedia article ...
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3answers
379 views

What were the causes of the “Dardenelles” fiasco in World War I

During World War II, the Allies sent supplies to the Soviet Union via Murmansk/Archangelsk in the north, via Persia and the Caspian Sea in the south, and via the Tran-Siberian railroad. Why didn't ...
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1answer
3k views

German Government branches during World War 2

During World War 2, what government branches, if any, existed in Germany? I've always heard about the Third Reich and Hitler, but I never heard about the rest of the government.
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1answer
997 views

How were diplomats and their staff's treated when World War II was declared?

This could be a large and varied subject so i will restrict it to the 20th century and give two instances. In Sept 39 after Poland was invaded the British diplomat in Berlin handed a note to the ...
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2answers
461 views

How many different countries could a person alive today have lived in without leaving their hometown?

For example, a centenarian who has spent her entire life in Rijeka would have lived in five: The Austro-Hungarian Empire (until 1920) The Free State of Fiume (1920-1924) Italy (1924-1947) Yugoslavia ...
3
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1answer
51 views

Where Can I Find Historical Candidate Photos of U.S. Elections (both winners and losers)? [closed]

I am looking to do a research project involving photos of United States political candidates (probably gubernatorial, but potentially Senate and/or Congressional). I would like photos from the 1920s ...
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2answers
353 views

Symbol on utility pole in photograph from 1906

I happened to notice this symbol: on a utility pole in a photograph from 1906. What's the meaning of that symbol?
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4answers
557 views

Chronology of Political Party Alignment with “Left” and “Right”

I once heard it said that U.S. political parties (Republicans and Democrats) have both spent the last century becoming increasingly liberal, such that 21st century Republicans now hold the same ...
11
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5answers
1k views

What new technology/tactics allowed the breakthrough of the trenches in WW I western front?

Reading the answers to this question about WW1 Western Front, it appears that breaking through the trenches was a very difficult task to do. How did the Allies finally make it? Was it the invention of ...
15
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3answers
1k views

Why was the Western Front so static in World War I?

Once the German advance was halted, neither side could seriously advance for two years. This seems like an extraordinarily long time. Why didn't anyone succeed at going around the trenches or striking ...
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3answers
675 views

Why were the British so reluctant to allow Jewish migration to Palestine?

Not sure this is the correct forum to ask this, but i'm currently reading 'Exodus' by Leon Uris, and i'm curious as to why the British were so reluctant in letting jewish people in Palestine. This ...
2
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1answer
228 views

What was Wilson's mistake in the 1918 Congressional election?

Keynes writes in The Economic Consequences of the Peace that The President's mistaken policy over the Congressional election had weakened his personal position in his own country, and it was by ...
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2answers
175 views

Nicknames of M36 Gun Motor Carriage

During World War 2 and Korean War United States Army used tank destroyer M36 (90mm Gun Motor Carriage M36). British soldiers gave one of nicknames to it, "Jackson", after general Thomas Jonathan ...
3
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3answers
154 views

Smoking as a throat cure

In the movie The King's Speech Prince Bertie at some point says his doctors had advised him to smoke, in order to improve his throat's condition. Does this stupid suggestion represent actual medical ...
3
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2answers
111 views

What percentage of relocated Armenians died?

What percentage of those forced to relocate actually died as a result of the relocation?
7
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1answer
151 views

Is taking away decorations of traitors a normal modus operandi?

In the USSR, people convicted of treason were routinely stripped of their State decorations, even when they were honestly earned before the treason (e.g., Власов, Добробабин, Берия). The sentence also ...
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2answers
128 views

What were the reasons for the Federal Art Project?

From August 29, 1935, until June 30, 1943 United States promote what they called Federal Art Project. Reputed to have created more than 200,000 separate works, FAP artists created posters, ...
12
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2answers
4k views

Why was the Cuban Revolution (1953-1959) ultimately successful?

Communist revolutions have been attempted across the world - what were the primary reasons that the Cuban Revolution succeeded while others failed?
2
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1answer
235 views

Would modern aerodynamic design be recognizable to a vehicle expert 100 years ago?

Which is a stronger constraint on vehicle appearance: aerodynamic theory or manufacturing? If we gave Henry Ford a peek at our modern cars, would he fail to recognize it as a car? Or would it his ...
3
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1answer
150 views

Who was Charles Kingston O'Mahony?

I've read his book The Viceroys of Ireland and am trying to find out more about him. The book was published in 1912 and I can't find any more information about him. I was able to dig up references to ...
14
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5answers
1k views

Can someone help explain this floor plan of a mid 20th century apartment?

I was watching 12 Angry Men, which was made in 1957; and they show this floor plan of an apartment: My main question is, what's the opening in the wall between the hallway and the main room? It ...
6
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13answers
4k views

What is the oldest movie theater in the US that has been in continuous use as a movie theater?

It appears from Wikipedia that the oldest theater in continuous use is in Denmark, but since so much of the film industry is dominated by Hollywood, I was wondering what is the oldest movie theater in ...
5
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1answer
184 views

Is there support for the theory that the 1918 influenza resulted from churning up microbe-laden French soil?

Margaret MacMillan's The War That Ended Peace: The Road to 1914 contains the following: In the first years of the peace, fresh afflictions fell on European society: the influenza epidemic ...
4
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0answers
170 views

How was the relation between the Ottoman Empire and Serbia, Greece, and Montenegro during the Second Balkan War?

As pointed out by Tom Au in this answer to "Has there ever been a truly multi-sided war?", Turkey fought and lost to Bulgaria, Serbia, Greece and Montenegro in the First Balkan War. However, shortly ...
6
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1answer
232 views

What was the Nature of Resistance in 1938 Czechoslovakia?

I wonder if someone might help me. I'm writing a novel. My protagonist is a dual national (English born, German parents) bio chemist contracted to work for Freiburg University 1938. At the time ...
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3answers
5k views

(War Guilt Methodology) Was Germany solely to blame for WWI?

Article 231 of the Treaty of Versailles places the blame of the war solely on Germany and her allies. This is the quote: The Allied and Associated Governments affirm and Germany accepts the ...
6
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1answer
230 views

To what extent did the CPC avoid fighting with the Japanese?

There's general agreement that the Japanese invasion of China benefited the CPC by interrupting the civil war, forcing the KMT to fight the Japanese instead of continuing the CPC purge, which they ...