help-understand Milleniums?

actually the only millennium I am wondering about is the 16 yr old grandson.

I can even remember back that far! ha.....52 yrs! I had not that many thoughts in my head! after school job, my horses, passing my h s classes...... a little hunting, fishing. I had wheels, sorta.... gas for it, horse feed..... BUT I knew my parents were NOT well off, more like on the poor side. and if I wanted something I better work for it...... basically I never asked for anything.