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∙ 11y agoA period of 25 years is commonly referred to as a "quarter-century."
A period of 75 years is called a "septuagenary."
A period of six months is called half a year.
Sean Connery was born on August 25, 1930.
When you are ninety years old, you are called a nonagenarian.
It depends of the age, there isn't a specific time that it has to last.
A quarter century.
A Period of ten years is called a decade.
A period of 75 years is called a "septuagenary."
A period of 10 years is called a decade.
A period of 100 years is called a century.
A period of 100 years is called a century.
A period of ten years is a decade.
The period of 100 years is called a century. A period of 10 years is a decade, and 1000 years is a millennium.
silver jubley
A period of forty years is called a quadragennial.
75 years is equivalent to 3/4 of a century
One quarter. A century is 100 years, therefore 25 years is one quarter of that period (because 4 x 25 = 100).