1- What is the meaning of " as such " in this sentence>>>>>>>>>>> We were second-class citizens and they treated us as such.

2- What is the meaning of " over the years " hn this sentence>>>>>>>>>>>> We’ve had a lot of fun over the years.

my e-mail is flowery0@hotmail.com

In these examples,
as such = like we were (second-class citizens)

over the years = at times in the past (both distant and near)