Have you ever seen letters from the 1800s? Aside from the pristine penmanship and grammar, the way friends expressed their fondness for each other is remarkable.
“Letters sent between friends are often full of the kinds of loving and affectionate language that today we would only associate with romantic or sexual relationships: ‘My darling,’ ‘I love you,’ ‘I can’t wait to be near you,’” said UC Berkeley historian Sarah Gold McBride, who in 2022 created the course, Friendship in America, with Berkeley anthropologist Christine Palmer.
Throughout history, with changes in...