The new decade starts in 2021: when doing the count for our new era , there is no year 0 : +1 AD follows immediately -1 BC ...so the first decade is years 1 to 10 , the 2nd from 11 to 20 and so on ...


"Anyone can shoot you down if you don't see him coming but it takes a wonderfully good Hun to bag a Camel if you're expecting him."
Tom Cundall.