I'd like to hear some real medieval British music.

I know that American soldiers wore blue uniforms from the Revolutionary War all the way up to the Spanish American War, but then at one point between then and World War I they switched to brown. Why did this change occur? Was it for camouflage? I know that in the War of 1812 and Indian Wars a lot of soldiers wore furs instead, and in the Civil War some soldiers wore ordinary clothes because there weren't enough uniforms, but why did they officially change the color of the uniforms?

The Korean Autonomous Province in northwest China exists to give, as the name suggests, Koreans autonomy.

As an additional question what led to the creation of this province and the emergence of the Korean majority in the region?

According to apologists for the Nazi regime, Stalin, despite retreating from the more immediate expansionist ambitions of the Soviet regime in the post-WW1 chaos period, was intending to ultimately invade Europe after industrialization in the USSR prepared it for war. (I'm given to understand that there's also a school of thought associated with the book Icebreaker by a Soviet defector arguing that Stalin intended to attack in 1941.) And, thus, the German invasion of Russia and Russian-occupied territory in Eastern Europe was supposedly a just pre-emptive war of self-defense. Is this accurate?

Let me emphasize that I'm not looking for an answer that only focuses on the other, ideological, motivations of the Nazi regime in terms of drang nach osten settler colonialism and imperialism. Nor am I looking for a catalog of war crimes committed by German and German-allied forces in what Synder terms the "Bloodlands" during the war. I'm quite interested in both these topics, and if there's something really interesting/relevant from them you want to mention in your response, please do; but what I'm really trying to learn more about here is the long-term strategic thinking of the German and Russian regimes before the outbreak of the war.

Before the development of the steam engine, how would an organization go about sailing a large quantity of people and material to far flung places?
An example would be: How did England get it's army to the 13 colonies when they revolted and keep that army supplied?

It feels mind boggling to me as to how you could get such a large fighting force across an ocean and supplied without heavy machinery and industrial era ships.

Note: I'm not referring to a Greek vs Roman battle per se, but similar to the kind of strength tests they do on Forged In Fire

I am pitifully weak once out of my northern French cultural zone and want to change that. Help a dude out!

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In other words, when would engineers stop relying mostly on empirical knowledge, and start using theoretical science to build things?

One of the glories of the internet is that many previously inaccessible sources are now available online. Traditional museums and archives, governmental agencies and private foundations all present digitized historical sources to any of us with an internet connection.

Which sources do you find most useful? How should historians work with online sources to make sure that they are accurate?

I can find numerous articles to support this claim but none of them seem to cite a source.

I'm wondered about the history of the title "First Lady" as it's given to the wife of a sitting US president. The role itself seems to have some evolution over time, with even non-wives of the President fulfilling it.

The Wikipedia entry has some information, related to James Buchanan's wife and an eulogy by Zachary Taylor for Dolly Madison, but no definitive citations regarding the usage becoming common or accepted. Etymonline has some information about the use of "Lady" as a title (as in Ladies and Gentlemen), but the site dates the common usage of the honorific to around 1890, well after Buchanan's presidency.

The second part is related to the Titles of Nobility Clause in the US Constitution. The title "Lady" is commonly accepted as the feminine of "Lord", is the exception due to the common usage of the honorific?

Or did all responsibility fall on the commanding officers?

When the First World War broke out, Egypt was occupied by the United Kingdom and parts of the Arabian Peninsula were Ottoman territory, but with the series of Operations that the Brits enacted was oil ever on their minds, and to what extent? I'd always thought that the mass oil reserves hadn't been dug up yet, but eh... idk

And if so do you have favorites?

I'm working on a brief introduction to the sourdough bread process, and since I live in San Francisco, people keep asking me why San Francisco has such an extensive popular connection with sourdough.

I'm inclined to think that it has something to do with the Gold Rush, but I've seen a few references to suggest that might be something of an exaggeration.

Not sure if this might fit better in /r/askculinary or /r/askscience (If there's a microbiology reason, that might make sense), but I'd love some discussion of how sourdough came to be the more-or-less official bread of San Francisco.

The US Navy was built up throughout the Civil War to implicate the Anaconda Plan, calling for a blockade of Southern ports. At the end of the war, how powerful was the fleet after being so extensively strengthened? How did it compare to the powers in Europe, such as Britain, France, and Spain?

How did the European powers view the effectiveness and cohesion of the armies of the North and South? Were they seen as a rabble, disorganized and worthless? Or maybe somewhat disciplined and effective? What about the abilities of the officer corps on either side?

I have some ideas about contemporary popular culture's relationship to colonialist narratives, but I want to see what the current hot literature says. I've read a good number of the 'seminal' texts (Said, Fanon, Spivak, etc) but would like to see newer secondary sources.

what other types of political and philosophical thought existed at that time aside from city-states ruled by lords?

All of China officially uses a single time zone, Beijing Time. What was the reasoning behind doing that? Communism alone doesn't seem like reason enough, but I'm not sure what the real reasons were.