Welcome to Tuesday Trivia!

If you are:

• a long-time reader, lurker, or inquirer who has always felt too nervous to contribute an answer
• new to /r/AskHistorians and getting a feel for the community
• Looking for feedback on how well you answer
• polishing up a flair application
• one of our amazing flairs

this thread is for you ALL!

Come share the cool stuff you love about the past!

We do not allow posts based on personal or relatives' anecdotes. Brief and short answers are allowed but MUST be properly sourced to respectable literature. All other rules also apply—no bigotry, current events, and so forth.

For this round, let’s look at: Friends & Friendship! This week, we're lifting up all things related to friends and friendships! Know something about the history of humans building relationships outsides family structures you want to share? Or want to pass along the history of something related to friendships like friendship bracelets, pen pals, or secret clubhouses? Bring it on!