Life Cycle of an ASP.Net Page is an interview question which probably every newbie gets in an interview. Sometimes people tend to forget minute details, but here is a pictorial representation of the same. As they say, picture says a 1000 words.
If you were concern about only the main events then there is another way to remember it, the rule of SILVER
S - Start
I - Initialize
L- Load
V - Validate
E - Event Handling
R - Render