Answer:
There are two versions of the heptathlon, one contested outdoors mainly by women and one contested indoors mainly by men.
Woman's Heptathlon:
First Day: 100 meter hurdles, high jump, shot put, 200 meter dash
Second Day: long jump, javelin throw, 800 meter run
Men's Heptathlon:
First Day: 60 meter dash, long jump, shot put, high jump
Second Day: 60 meter hurdles, pole vault, 1000 meter run