Read and learn about history. Pick out a good one.
https://en.wikipedia.org/wiki/June_10
1935 – Dr. Robert Smith takes his last drink, and Alcoholics Anonymous is founded in Akron, Ohio, United States, by him and Bill Wilson.
1944 – In baseball, 15-year-old Joe Nuxhall of the Cincinnati Reds becomes the youngest player ever in a major-league game.