Explosive events and major turning points are often milestones.
So are smaller things. If you have a sense of “before” and “after” about it, it’s a milestone. When you say something like, “I know that happened before 2019 because the room wasn’t painted pink yet,” painting the room pink serves as a milestone.
Write a single line about 26 different milestones in your life. Twist each description around in such a way that each one begins with a different letter of the alphabet.
Illustrate the page if you like. Give your work a title. Put your signature and the date on it, too.