TIL that shortly before or after the armistice of World War I, all 22 monarchs of the German Empire abdicated or stepped down

https://en.wikipedia.org/wiki/List_of_German_monarchs_in_1918

https://www.reddit.com/r/todayilearned/comments/15j37hx/til_that_shortly_before_or_after_the_armistice_of/