# Question: What Is The Period Of 20 Years Called?

Since, 10 years = a Decade, (via French and Latin) which means ‘a group of ten.

So, 20 years = 2 Decades.

## What is the name for 20 years?

Latin-derived numerical names

AnniversaryLatin-derived termOther terms
13 yearsTredecennialLace
14 yearsQuattuordecennialIvory
15 yearsQuindecennialCrystal
20 yearsVigintennial / VicennialChina/Porcelain

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## What is a period of 30 years called?

A period of 30 years is equal to 3 decades. Because, 10 years = 1 decade. 1 year = 1/10 decade. 30 years = 30/10 = 3 decades.

## What is a period of 50 years called?

A period of fifty years is called semi-centennial, Alternatively, if a period of ten years is called a decade, then fifty years could be called five decades, It is also half a century.

## What is a period of 12 years called?

Duodecennial word can be used as alternatively for a gap once in 12 years .

## Is 2020 a new decade?

Recently, there has been much debate about when the old decade ends and the new one begins. Some say this decade ends on December 31, 2019, and the start of the new one begins January 1, 2020. For others, the new decade doesn’t start until January 1, 2021; the old one concluding on December 31, 2020.

## Is 2019 the end of a decade?

The argument is that because there is no year 0 in the Anno Domini system our calendars are based on, the first year ever was year 1. Therefore, the first year of any and all subsequent decades is the one ending in 1. 2019 is not the end of the decade, 2020 is.

## What is a million years called?

Answer and Explanation: A million years is called a megaannum, which is often abbreviated ‘Ma. ‘ This term comes from the word parts ‘mega’ which means ‘huge’ and ‘annum’

## Is 2020 a new century?

The 2020s (pronounced “twenty-twenties”, shortened to the ’20s) is the current decade in the Gregorian calendar, which began on 1 January 2020 and will end on 31 December 2029.

## How do you count centuries?

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How do you correctly number centuries in history? – YouTube

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## What do you call a 12 year old?

A preteen or preteenager is a person 12 and under. Generally, the term is restricted to those close to reaching age 12, especially age 11. Tween is an American neologism and marketing term for preteen, which is a blend of between and teen.

## Is a decade 10 or 12 years?

A decade is a period of 10 years.

## What defines a century?

Definition of century. 1 : a period of 100 years a company that has been in business for more than a century specifically : one of the 100-year divisions of the Christian era or of the preceding period of human history the third century A.D./B.C the 18th century. 2 : a group, sequence, or series of 100 like things.