Final answer:
Protesilaus was the first Greek man to leap ashore at Troy, but he was killed by Hector. His death marked the start of the Trojan War.
Step-by-step explanation:
The first Greek man to leap ashore at Troy was Protesilaus, but he was killed almost immediately by the Trojan hero Hector. According to Greek mythology, Protesilaus was the first to step foot on Troy's shores and was destined to die as a result. His death marked the beginning of the Trojan War.