There is no designated last year for the AD calendar. AD takes it year by year and keeps going that way. It is not like the Mayan Calendar. So there is no designated last year in the AD calendar. Nobody knows. It could be this year. AD will just keep on going until the end.
The year 1 BC was immediately followed by the year 1 AD. So from the end of 25 BC to the end of 1 BC was 24 years and from the beginning of 1 AD to the beginning of 16 AD was 15 years. So the number of years between the 25 BC and 16 BC = 24 + 15 = 39 years.
There is one major known event that was recorded and occurred in the year 848 AD. A Christian prophet named Thiota predicted the world would end that year.
Emperor Romulus was succeeded by his general Odoacer, a Goth.
AD 27 came first.
1500 ad to 1750 ad
AD Ferroviaria ended in 2007.
AD Torrejón ended in 2002.
AD Almería ended in 1982.
AD Adra ended in 2011.
201 AD to 300 AD
476 AD was the end of the western Roma empire.
AD Las Palas ended in 2008.
Ad Astra Aero ended in 1930.
The Ad-Libbers ended on 1951-08-31.
AD Sagrada Cena ended in 2010.
AD Fundación Logroñés ended in 2009.