What is meant by "the shot heard 'round the world"?

It meant that the shot was so loud and it started the Revolutionary War and told everyone around the world that the war had began.

gaius cassius longinus and marcus junius brutus, former enemies of julius caesar who'd joined the roman senate, led caesar's assassination, dubbing themselves "the liberators." and the second one is   the assassination of julius caesar was the result of a conspiracy by many roman senators led by gaius cassius longinus, decimus junius brutus albinus, and marcus junius brutus. they stabbed caesar (23 times) to death in a location adjacent to the theatre of pompey on the ides of march 15 march 44 bc.

which colony was founded, in part, as a place for english debtors?

a) georgia