A good sentence would be "my mom lived in a million centuries before she even came to earth." if you use this sentence good choice because i got an A on my history test! :)
Until now, the comet had been unobserved for centuries.
Known as a counting devise, the abacus has been in use for many centuries
The centuries of burning at the stake have left the forelock tuggers alive.
The bodies of some saints have remained incorruptible even centuries after they died.
The exogamy that our clans practice has helped to maintain peace throughout the land for three centuries.
For many centuries people had searched for evidence.
Historically speaking, North American governments have been mistreating aboriginal people for centuries.
"their achievements stand as a culimation of centuries of development"
How many centuries has indoor plumbing been around? The Chinese dynasties rarely last more than several centuries.
A century is a period of 100 years. You can say, "The United States was founded over two centuries ago in 1776."
Cavemen made fire hundreds of centuries ago.
some rules and laws are immutable they stay the same forever. This sentence contains the word immutable.