1st century BC
The 1st century BC started on January 1, 100 BC and ended on December 31, 1 BC. An alternative name for this century is the last century BC. The AD/BC notation does not use a year zero. Scientific notation does, however, use a minus sign, so '2 BC' is equal to 'year −1'.
1st Century BC Media
Sulla's march on Rome in 88 BC was an early step in the Crisis of the Roman Republic.