Its called a century! century means 100 years and decade means 10 years
A decade.
a dot
A period of 100 years is conveyed by the single word century.
History
The sengoku period lasted for about 450 years
A period of seven years is called a septennium.
sevennenium
generation
100 years is a "century."
term millennium
A decade.
That's called a millenium.
People often call this an Ice Age. The last glacial period began about 100,000 years ago and lasted until 25,000 years ago.
If you're in the first 1-2 years of your period, it's normal. If not, call a doctor.
Long-period comet
A millenia.AnswerA megayear. Zekromrocks:A millennia is 1000 years isn't it?
Procession of the Equinox