A 150-year period is commonly referred to as a "century and a half." While there isn't a specific term like "century" for a 150-year span, it can also be informally called a "sesquicentennial," which specifically marks the 150th anniversary of an event.
Well, darling, a period of one year is called a "year." It's not rocket science, sweetie. Just like how a period of one month is called a "month." Keep it simple, honey.
It's called a decade.
A period of 100 years is called a century.
silver jubley
It COULD be called a Gigayear, but in practice it is simply called "a billion years".
An 150 year celebration is called a Sesquicentennial celebration
An 150 year celebration is called a Sesquicentennial celebration
Well, darling, a period of one year is called a "year." It's not rocket science, sweetie. Just like how a period of one month is called a "month." Keep it simple, honey.
A ten year period is a decade.
a 12 month period is called a fiscal year, there is also a natural year.
A period of six months is called half a year.
The colonial period. The colonial period.
a five-year period is a quinquennium
It's called a decade.
A period of 100 years is called a century.
A century
A millennium