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Except that we actually do use this system for years. Thus 1 BC (the first year BC) was followed by 1 AD (the first year AD). Also for centuries, as in 'the 20t
by OscarCunningham 4y ago
Except that we actually do use this system for years. Thus 1 BC (the first year BC) was followed by 1 AD (the first year AD). Also for centuries, as in 'the 20th century' being the years 1901 to 2000.