The 20th century began on January 1, 1901, and ended on December 31, 2000.

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Why did Hitler attack the Soviet Union when he was still busy fighting the United Kingdom?

This has always bothered me. Everyone knows that having to fight on two opposite fronts at once is bad... and it's also a well known fact that every European country which tried to invade Russia has ...
29
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5answers
1k views

When did the practice of formally “declaring war” cease and why?

Here's a detailed description of ambassador Neville Henderson being received by the foreign ministry in Berlin in 1939. Perhaps the most famous example. He came in looking very serious, shook ...
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11answers
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Why didn't Imperial Japan attack the Soviet Union during World War 2?

Japan and the Soviet Union shared a common border in Manchuria and the German invasion of the Soviet Union weakened the Soviets greatly. In view of the advantages to Japan in seeing the Soviet Union ...
7
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2answers
334 views

What sources or documentation exists to indicate Stalin's level of popularity in Russia today?

migrated from comments http://history.stackexchange.com/a/1710/682 To what extent is Stalin still loved and/or respected by Russians (and for extra points former USSR states) while articles like ...
21
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5answers
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Why did Italy abandon its alliance with Germany in WW1 and join the Allied side?

Before WW1 Italy was part of an alliance with Germany and Austria-Hungary, yet it didn't join them when the war started and it even joined the Allied side later during the war. Why did Italy do this? ...
19
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5answers
2k views

What were Hitler's religious beliefs?

Hitler is often cited as an example of an evil atheist (along with Stalin and Mao). But there are several quotes from him that seem to indicate he believed in the Christian God - and even used this to ...
18
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4answers
458 views

What were the reasons for making Prohibition a constitutional amendment?

What were the reasons that the Prohibition in the United States was passed as a constitutional amendment, rather than a normal federal law, or a set of state laws?
16
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1answer
187 views

In which document was the exact course of the northern part of the German-Polish border decided?

While researching the answer to "How was Germany's border decided?", I didn't manage to find any documents which would precisely describe the borders between Germany and Poland between the points 53° ...
35
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9answers
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Why did Hitler declare war on the USA?

Since there had not been any offensives launched by either side against the other, why declare war just because Japan had attacked the USA?
43
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6answers
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Why did the USSR give Crimea to Ukraine?

In 1954 Soviets transferred Crimea from Russian Soviet Republic to Ukrainian Soviet Republic. Why is this strange? The whole act, at least officially, was meant to be "a gift", a token of ...
40
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9answers
4k views

Why didn't France and UK invade Germany September 3rd 1939?

On September 3rd 1939, when UK and France declared war on Germany, both ordinary Polish people and government officials became enthusiastic. There were spontaneous demonstrations of support for the ...
13
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6answers
6k views

Did Hitler really support Subhash Chandra Bose's cause and did he do anything to help Bose?

Bose had come to realize that Gandhi's doctrine of non-violence was not doing much in forcing the British to retreat. He went to Germany to seek Hitler's assistance in India's struggle for freedom. ...
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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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4answers
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Has Britain's 1940 invasion of Iceland been downplayed by historians?

On the face of it Operation Fork (Britain's invasion of Iceland in 1940) wasn't so terribly different from Germany's territorial landgrabs in 1939 and 1940. Britain and her allies will have ...
15
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3answers
942 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 ...
6
votes
1answer
264 views

What were acceptance criteria/process to the Vienna Fine Arts Academy in 1906-7?

One famous applicant rejected by the Vienna Fine Arts Academy was of course, Hitler. I got to thinking: so who was accepted instead? To make sense of this we would need to know how was the admission ...
5
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1answer
92 views

What family or other connection bound Chiang Kaishek and Cai Yuanpei, two ideological opposites?

Politically, Nationalist China's Chiang Kaishek must be considered a "strange bedfellow with Cai Yuanpei. Chiang was a disciplined, narrow-minded conservative of the type one might expect from a ...
11
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3answers
649 views

What factors related to the Eastern Crisis contributed to the outbreak of World War 1?

What factors related to the Eastern Crisis contributed to the outbreak of World War 1? The Eastern Crisis pertains to problems posed by the decay of the Ottoman Empire. Primary among these problems ...
9
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3answers
618 views

Why is Finland represented as a Soviet satellite in this 1947 cartoon?

The cartoon is a British one. I found it at http://lenta.ru/articles/2013/05/28/secretwar/ but without any specific attribution.
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2answers
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What was Gandhi's post-factum view of the Partition?

Gandhi was vehemently opposed to the Partition of India and tried to avoid it. But what was his stance on it once it had happened? Did he accept it as fait accompli or did he envision some scheme for ...
8
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1answer
174 views

To what extent was Prohibition supported by the American public?

I read an answer here that said the prohibition was imposed on cities against their will. A bit of research on Google seem to say that it was pushed through because people didn't realize even wine ...
8
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3answers
2k views

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?
7
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3answers
2k 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.
5
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2answers
245 views

Was there anything like African American architecture style or symbolic in the beginning of 20th century?

At the beginning of 20th century, large masses of black people were migrating to North or between districts of the same towns (like in New York from Tenderloin or San Juan Hill to Harlem, previously ...
4
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3answers
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Evolution of United States' world role? [closed]

This is a pretty big and general question, but I'm interested to hear some opinions from fellow StackExchangians: Over the 20th century, how did the United States evolve into being a world ...
3
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1answer
308 views

Is there a written history on the Sonderkommando Elbe?

I was watching a program called Dogfights where they were talking about the Sonderkommando Elbe and their tactic of ramming Messerschmitt Bf 109's into American bombers is a sort of suicide attack. ...
15
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3answers
2k views

What caused the Iranian 1979 revolution to become Islamic?

How did an initially anti-Shah revolution become an Islamic revolution? Was it because of Khomenei's return to Iran such that he seized the Iranian revolution?
13
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2answers
957 views

World War 1 Indian propaganda posters

In World War 1, because war broke out between the triple entente and the central powers (and they happened to have a lot of foreign colonies), the allies made posters to recruit soldiers from all ...
9
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1answer
580 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 ...
8
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2answers
1k views

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 ...
6
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2answers
650 views

When did the last formal and recorded duel take place?

It seems that duels are no longer fought because of a combination of both changes in law and in fashions. E.g. Tom Reiss' The Black Count: Glory, Revolution, Betrayal, and the Real Count of Monte ...
6
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2answers
2k views

How did Egypt become a protectorate of the British empire?

How did Egypt become a protectorate of the British empire in 1914? (Feel free to add more content to this question)
5
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2answers
697 views

Was the painting of men's nails a rare practice in the mid-20th century?

I came across the following description of Hermann Göring after his capture in 1945 in Elizabeth Borgwardt's A New Deal for the World (On Google Books): The impression of a dissolute voluptuary - ...
5
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2answers
728 views

Where does the tradition of Christmas gifts comes from?

Where does the modern tradition of exchanging gifts from Christmas comes from? I've heard that it's inspired by a similar tradition the Ancient Romans had on one of their festivals, is that true?
4
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2answers
314 views

How high was the morale of non-Soviet Warsaw Pact states' armies and governments in the '80s?

Does anyone with any relevant expertise know the general mood of the armies during the time? Is there documentation of any concerns from high ranking Soviet military officers, or of their Warsaw Pact ...