Five places, cannot stay there longer than a month, or shorter than a day. Must specify when, where, and how long. This is assuming you are an average middle class person who can blend in and out, also assuming you speak the language fluently. You will also be able to live in relative comfort for your stay. For battles you can be an observer, or a participant, but you need to tell us which, you cannot get killed or seriously injured in the battles. You cannot change anything about said events, and if anyone even thinks about saying butterflies in relation to not changing anything I will eat them alive.
So
1893, Chicago World's Fair, Two Weeks
113 AD, Rome, One Week
1863, Gettysburg, Three Days (Participate Union Side)
1914, Sarjevo, One Day
1776, Philadelphia, One Day
So
1893, Chicago World's Fair, Two Weeks
113 AD, Rome, One Week
1863, Gettysburg, Three Days (Participate Union Side)
1914, Sarjevo, One Day
1776, Philadelphia, One Day