Correct answer: 10 years
How long is a decade officially became part of the English vocabulary in 1590? It is used significantly to refer to once every ten years in a century. For example, the years 1680 or 1930, represent the time from 1680-1689.
In the Georgian calendar, decades represent different periods.
Their calendar doesn’t have zero which means if you’re referring to the 1850s it’s a period from 1851-to 1860.
The difference between the Georgian calendar and the standard calendar is seen when defining specific decades in a century. For example, typically eighties refer to the years 1980-1989. But in the Georgian calendar, 190, how long is the Decade?
The use of decades to denote a period of ten years has allowed humanity to easily distinguish significant historical events. Decades have allowed humans to quickly identify specific events in the past, for example, the 40s or 30s, meaning the 1940s and 1930s, respectively.
Each decade has a nickname derived from important events that occurred during that period. A fitting example in US history is ‘roaring twenty,’ which refers to the period during the 1920s during which a great deal of cultural change and economic growth took place.
As a result, most historical events are divided into decades, making it easy for people to distinguish events that happened during a particular time in the past.
A decade from 1981-1990.
In addition to historical events, age can also be classified into decades. Below are the age classifications in their specific decades;
|Name of the period||Number of Years it covers||Someone in their|
|Centenarian||100 and above||–|
The term decade has also been used to define the period during the 1990s when the Japanese economic market crashed. The period known as the lost decade occurred shortly after the second world war.
The economic fallout occurred when the Treasury Secretary raised interest rates. The increase in prices leads to the failure of the stock market, which affects the economic growth of the country.
The crisis lasted for almost a decade, and for now, it still affects the Japanese business market.
Other terms used in the calendar
A century is a period of one hundred years, such as the 19th century. The 19th century marks the years 1901-2000. The 200-year period is every two years.
Millennium is used to refer to 1000 years.
Megaannum is used to describe a million years.
A 2 week period is two weeks
One point is 20 years, while one point is five years.
Short periods of 2, 3, or 4 years are called two years, triennium and quadrennium, respectively.
Why Decade is 10 years long?
The word decade is derived from the Greek word ‘dekas’, which means a group of ten. Since the decade used by the Romans, they have used dec- syllables to identify items grouped by tens: E.G., decathlon, decagon. The two terms describe a set of ten things. Thus, the word dec- was included in the calendar to show the time of 10 years.