User login history of last 6months and 1 year

Hi Team,

How can we pull the unique user login history for last 6 months and 1 year?

Eg: 

3 users - user1, user2, and user3

user1 - logged on 1st jan, 4th jan, 6th feb

user2 - logged on 6th feb

user3 - no login history

So, for last 6 months we have to get the list as user1 and user2 are active.