It was the reputed year of founding of the Roman Republic.
509/510 was an impotant date in Roman history because that's when the republic was established.
509 b.c
BCE is not a date. To turn the term BCE (Before the Common/Christian Era) into a date you need to put a number before it. A date is the numbering of a year. BCE years are years that came before the Christian era; that is, before Christianity emerged .
509 bc
The term revolution is not used in relation to Roman history. What comes closest to a revolution in the history of the Romans was the overthrow of 244 years (753-509 BC) of monarchy in 509 BC. This led to the establishment of the Roman Republic which lasted for 482 years (509-27 BC).
509=DIX
Monarchy 753-509 BCE Rupublic 509 BCE-27 CE Empire 27-476 CE
The date given for the start of the Roman republic is 509 BC.
about 509 B.C.The Roman Republic was founded in the year 509 BC. Rome was a flourishing city in ancient times and was a Republic government.
DIX
509 CE
DIX = 509 D = 500 I = 1 X = 10 IX = 9