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 were there more Muslims in East Bengal than in West Bengal

When India and Pakistan were partitioned, Muslims were in a majority in east Bengal whereas Hindus were in a majority in west Bengal. What is the historical reason behind this demographic statistic?
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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 ...
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What were the operating principles of Japan's MITI during the 1950s and 60s?

Japan's Ministry of International Trade and Industry (MITI) guided Japan's economy through two decades of unprecedented economic growth. MITI was the primary instrument of Japan's industrial policy, ...
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How many firearms were owned by civilian population between 1836 and 1912 in USA?

How many firearms in total were owned by civilian population between 1836 and 1912 in USA (cumulatively, not simultaneously)? The timeframe is what I would consider "Old West" timeframe, but starting ...
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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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675 views

Did the USA win the counter insurgency war in the Vietnam war?

What happened in the aftermath of the Tet offensive to the Viet Cong? Was it actually broken or did it just incorporate into the North Viet Nam army? Edit: I am fully aware that the USA lost the ...
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467 views

What factors contributed to the popularity of Eastern cultures in the USA in late 20th century?

Question says mostly all. To be more concrete, I am talking about the popularity of Krishna and Buddhism on the religious side, and stuff like yoga on the more practical side. Some other things might ...
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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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Interaction between Ataturk and Lenin

Are there any records related to the relations between Turkey and USSR in 1920's? I know about the letter from Ataturk to Lenin (in Turkish) but nothing more.
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Why did Operation Market Garden go ahead when the allies knew German armor was in the area?

Montgomery's ill-fated operation to capture the Rhine crossing at Arnhem was ingenious but fatally flawed. Evidence suggests that the Allies knew there were German armoured units in the town a few ...
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Did Stalin want to restore the Russian Empire's borders?

On one hand, it seems so because the Molotov-Ribbentrop pact defined the border between the two spheres of influence to be the border of the Russian Empire before WWI. On the other hand, the USSR ...
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203 views

Why did 1906 Iranian constitutionalists use the Belgian constitution as inspiration?

The Constitutional Revolution of Iran in 1906 resulted in a constitution that established a parliament and a constitutional monarchy. Interestingly, it was based on the Belgian constitution. Was ...
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682 views

How to validate a historical source

You can learn and understand history various ways such as learning in a university, reading books, being taught by someone with a background in history, watching TV, browsing the internet, or, in my ...
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673 views

Where did the so-called “Jap Skulls” end up?

I have read that there was a disturbingly common practice of American soldiers in the Pacific theater of WWII to take the skulls of dead Japanese soldiers as trophies to take home, give to ...
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234 views

Did Trotsky serve as a hate-figure in PRC propaganda?

Maoism and Trotskyism share some similar ideas (by Maoism I am referring specifically to the guiding philosophies of the PRC during Mao's rule, and by Trotskyism I mean the beliefs of Trotsky, not ...
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935 views

When passports/border checks became widespread?

I was reading the Wikipedia on passports, and there were numerous important dates in passport history, but I didn't find any date when passports became widely used documents for travelling. I see ...
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1answer
440 views

When did retailers stop wrapping purchases in paper and twine?

Listening to stories from relatives, it sounds like it was a near-universal practice (in the US, before the 1970s) to wrap retail purchases with brown paper and twine. Searching for information about ...
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845 views

What was Poland's involvement in Vietnam War?

So far I've found a few stories about Poland's involvement in Vietnam War: historycy.org (in Polish) Operation Marigold Multinational UN peacekeeping force International Commission of Control and ...
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543 views

What was the contemporary German public opinion on the Herero Genocide?

The genocide took place during 1904-1907, organized by General von Trotha. Wikipedia says: Von Trotha's methods caused a public outcry which led the Imperial Chancellor Bernhard von Bülow to ask ...
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What happened to the S.A. (Sturmabteilung; “Stormtroopers”) after The Night of the Long Knives?

I'm reading The Weimar Republic and Nazi Germany by Warren B. Marris, Jr. (Nelson-Hall, Chicago), 1982 for an eassay. It outlines the power that the Sturmabteilung (abbreviated S.A., trans ...
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What was Lenin's major criticism of or differences with Marx?

I'm interested in what specific differences in Lenin's writing might address what he perceived to be the shortcomings of Marx's work. Wikipedia is weak on this topic.
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How did diplomats of the Axis powers travel and communicate among themselves in World War II

In World War II, Japan and the European Axis powers had to communicate over strategy and other things. Also, their diplomats must have had to go to their own countries sometimes. After the USSR ...
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463 views

Were any of the major battle plans in WWII changed last minute by officers on the ground?

I haven't found any consistent reference to a particular battle wherein the battle plans were changed by a lower level officer on the ground at the last minute. Specifically, a major battle plan, not ...
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309 views

Did the German authorities respell Polish names to be more German during the time of the Empire?

How were Polish names handled by Prussian and German authorities during the times of the German empire? It is well known there was intense Germanisation throughout the area, for example all location ...
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What do “zones of influence” mean, according to the Treaty of Sevres after WWI?

After its defeat in World War I, European powers partitioned the Ottoman Empire, annexing some of its territories, and setting up other territories as their "zones of influence". What do the zones of ...
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331 views

What was it like to have type 1 diabetes in the early 20th century?

Someone in my family died in 1924 of type 1 diabetes at the age of 26. What would life have been like for her? Would she have been in the hospital frequently? What was the average life-expectancy for ...
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Did Goebbels realize that his wife used to know Arlozorov?

One of the versions for Arlozorov's 1933 murder (not solved to this day!) is that it had something to do with his early friendship with Magda Goebbels. This is what wikipedia says, soberly hedging its ...
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Why was Germany held accountable for WW1?

The Treaty of Versailles forced Germany to accept all responsibility for the war. If the war was initially due to the assassination of Archduke Ferdinand by Serbian assassins, why did the Treaty of ...
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What is this strange uniform?

Colonel John Tiltman wears a very strange uniform in this picture, dated 1919. The original webpage where I saw the picture is http://www.colossus-computer.com/colossus1.html.
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When did we figure out that Venus was too hot for humans?

Today it's well known that the surface of Venus is incredibly hot, over 800 °F (427 ºC). Depictions of Venus in fiction, however, used to portray it as something close to Earth temperatures, ...
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Were there any political checks on the U.S. executive during their covert support of the military junta of Pinochet?

U.S. secretary of state Kissinger- with the support of the executive- actively supported the overthrow of Chilean president Allende in favor of the military dictatorship of Pinochet. After the fact, ...
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1answer
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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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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, ...
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860 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?
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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 ...
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376 views

Where was the U.S. president when Captain McGonagle was awarded?

The USS Liberty incident was an attack on a United States Navy technical research ship, USS Liberty, by Israeli Air Force jet fighter aircraft and Israeli Navy motor torpedo boats, on 8 June 1967, ...
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Did the Olympics make the Star Spangled Banner the US national anthem?

A long, long time ago, I remember watching a TV miniseries about the first Olympics of the modern era in 1896. One of the amusing substories I remember involved the USA's National Anthem and the ...
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To what extent did Gandhi affect the factors that led to the partition of India?

From the collected works of Mahatma Gandhi, we can learn that he was not as vehemently opposed to the Partition of India as one would expect. (See here) Probably no one is more distressed than I ...
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1answer
154 views

Did Radio Free Europe say that the Allies would come to the rescue during the Hungarian Revolution?

I found this video (in Spanish) where a woman claims that Radio Free Europe encouraged the Hungarians to resist, and that aid was on its way. Is this true? Is there any evidence? And if it is true, ...
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232 views

Did hanging tyres from Mostar's bridge help at all to protect it?

At various points (e.g. 00:14) in this BBC documentary on Mostar's Stari Most (Old Bridge) you can see dozens of car tyres hanging from the bridge prior to its destruction in the Croat-Bosniak ...
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1answer
640 views

What was the Soviet role in Syria during the Cold-War?

It is my understanding that the Soviet Union supported governments in Syria during the cold-war primarily as a counter-balance to American influence over regional powers particularly Saudi Arabia and ...
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1answer
175 views

Did Britain briefly recognize Mahmud Barzanji as King of Kurdistan?

The wiki entry on Mahmud Barzanji is very poorly written and very far from neutral. I turned to the Russian entry which is at least well-written and contains many interesting facts - some of them ...
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170 views

How were British personnel employed in the colonies after independence

A lot of colonies continued to employ British citizens in their government even after attaining independence. But how were these employees paid (in local currency, or in pounds)? Was it not considered ...
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Whig party identification in the House of Lords

After the Whigs became subsumed into the Liberal party, did the label survive in the House of Lords? As of today, the longest serving current peer began his tenure during the Second World War. It ...
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416 views

Ethnic Germans in Russian service in Poland

General Brusilov wrote in his memoirs that a few years before the war he was serving in a high military position in Russian-controlled Poland and that he was appalled by the fact that all Russian high ...
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During the U.S. Prohibition, how did they get away with drinking alcohol?

I have heard about countless stories talking about people drinking during the Prohibition. How was this possible? How did they get away with drinking alcohol without getting caught?
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Where was the pre-war (ww2) border between Poland and Germany?

I am interested in mapping the pre-war (WWII) border between Poland and Germany. Is there any data available in a public resource? Can anyone describe waypoints along the border in terms of modern ...
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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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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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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 ...