Assume for a moment, you have a time machine. This time machine can deliver you to any moment in time, and move through space to any point on Earth.
What would be the 4 things you’d most like to do with it?
Buy a newspaper from the future and make stock purchases/bets accordingly.
Go back to Berlin, May 1st, 1945 in Hitler’s Bunker. Sneak into Hitler’s room and beat the living **** out of him with an aluminim baseball bat. Then set him on fire.
Go back to the night before the Library of Alexandria burned down and steal as many of the books that I can take. Bring them back to the present. Hand them over to various universities and scientists
Go back to July 12, 1562. Locate Diego de Landa and when he’s alone, kick him square in the nuts, repeatedly. Then go back a day and steal as many of the mayan books(which Sr. Landa burned on the 12th) as I can carry. Take them back to the present. Hand them over to various scientists and universities.