Simplify the following text for a Grade 8 native English-speaking person.
Original: In April 1770 , Endeavour became the first seagoing vessel to reach the east coast of Australia , when Cook went ashore at what is now known as Botany Bay .
Simplified: In April 1770 , Endeavour became the first ship to reach the east coast of Australia , when Cook went ashore at what is now known as Botany Bay .