Answer:
Hi there!
Your answer is
-Rome was founded on April 21, 753 BC by Romulus and his twin Remus!
-Rome existed for about 1000 years!
-They developed many new techniques for buildings and construction of all types including the invention of concrete, Roman roads, the invention of Roman arches, and incredibly well built aqueducts that ran for miles before they reached the end and delivered fresh water
I hope this makes sense!