The KP/-31 and PPSH look awfully similar in design, and Finland produced its own version way before the Soviets did. (With the exception of the soviets adding the drum magazine)

How did the Soviets acquire the design for their PPSH? Did they just copy it off the KP/-31?

The Baltics, poland, Romania, Czechslovika and others after the fall of the USSR quickly strengthed ties with the West by either joining with the EU or becoming a NATO member.

Did they just do this because western europe was seen as a more economic friendly/prosperous country?

Not sure if this is the best subreddit, but I figured it was a good place to start. I'm looking for vocal music from around the end of WW1 to within a few years of Armistice. Topic would obviously be the war, preferably regarding the desire or the occurrence of peace. It can be from any country, in any language, as long as I can find a translation for it. I have found a few appropriate options from America, England, Scotland etc. but would love to have some good ones in French or German as well. Bonus points for any in the languages of any other non-English speaking combatants.

I'm looking for more of a classical style of choral music, but anything that can be arranged in that style will work (which is probably most music at that time). A good example might be "I Vow to Thee, My Country" if that helps anyone.

I'm looking for this for a potential choral performance and if possible, would provide the end result if people are interested, though I believe the performance will be coinciding with the 100 year anniversary of the end of the war, so it'll be a few years, but I promise I'll deliver one way or the other!

Thank you all for your help, and let me know if there is a better subreddit to address this question to.

As per the title, I am after a well presented look at major events from the 20th century. They don't need to be massively in-depth but provide a good overview with the key points e.g.:

Civil Rights Movement Space race Cold war

Ideally the videos would be relatively short (less than 10 minutes).

Any recommendations?

I was reading about the manhole cover launched "six times the escape velocity from the Earth" during Operation Plumbob when this question came to me. Did anybody think to use atomic blasts to power extremely long range artillery? Or did long range missiles make that idea completely irrelevant?

What was the rationale of allowing high-wage earners to pay proportionally less relative to earnings than the middle/lower class? IF the common refrain that high earners should pay more taxes, then why have a payroll tax cap that allows these same earners to pay disproportionally less relative to their earnings?

Would love if you can refer to any sources!

There doesn't appear to be anything anywhere that says we should only have two parties.

Just a few decades ago, the Persian Empire had fought a bitter conflict against the Greek city states. What would make Persia join Spartan against Athens? What would make Spartans trust Persia when they had been such bitter enemies? Also, to what extent did Persia contribute to Sparta's victory?

I read a very interesting post about how artillery worked in World War II -- in particular, the USA's very efficient artillery doctrine.

I was wondering if artillery doctrine evolved after World War II, but before the invention of GPS.

Simply put, how did a post-WWII soldier call in an airstrike or artillery bombardment before the invention of GPS? Would artillery pieces have computational computers yet? Or would it pretty much be the same as in WWII?

What animal did ancient Sub Saharan Africans and South Americans use for long distance and fast travel. I know Camels and Horses were used in parts of the world. But I don't know what Sub Saharans and South Americans used (if any at all?)

I saw an article that discussed evidence of Hawaiians trading as far south as Tahiti. Is there any evidence of similar far trade routes? How aware were they of the extent of their own culture? Did they trade beyond the Polynesian triangle?

OK, so I have an AP History research paper due in two weeks, on any topic I wanted. I decided I wanted to focus on how Charles "Lucky" Luciano revolutionized the Mafia. I really like this topic, but I've hit a roadblock when it comes to finding primary sources to support my thesis.

My main arguments are: his inclusion of non-Italians and giving them positions of power, making the Mafia more democratic (establishing The Five Families), and I need one more main idea.

Also if sources could be provided that would be magnificent. Thanks /r/askhistorians!

I am aware that the Japanese did at times use shields, but it seems to have been rather uncommon. Any reason I could think of would be unfounded speculation. Are there any primary sources that discuss shields and provide an explanation for eschewing them? Any well founded academic theories?

Greetings Historians. I can appreciate in the context of the Cold War that there was a political component to nuclear testing. Is there any known purpose behind this lull?

Edit: if I had to guess, it was a sign of good faith in negotiating the 1963 partial test ban treaty, but I have no evidence of this.

Were they pressured by drafts? Are there documented incidents of them serving in wars?