Re: New decade?
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Sure, if you call the 50s from 1950 to 1959 thats' OK. But the 1950s are the SIXTH decade in the 20th century, NOT the FIFTH decade of the 19th century. The SIXTH decade goes from 01/01/51 to 31st Dec 1960 !!
Of course the new decade begins 01/01/2021. But again the 2020s are the THIRD decade in the 21st century, NOT the 2nd decade of the 20th century.
In the same way the 21st century began on 01/01/2001, NOT in 2000 or 2100.
Most people (especially the media, who generally have arts degrees not science or engineering degrees) said the first year of the new century was 2000, but they can't count.
The end of the FIRST year (1 AD) was 31st Dec 0001, so the end of the FIRST decade was 31st Dec 0010 & the therefore the FIRST year of the 2nd decade (the TEENS) began on the 01/01/0011 (not 0010 !!).
Dr Terry
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