Original: History British and Dutch navigators first included the island on their charts in the early seventeenth century , and Captain William Mynors of the British East India Company vessel , the Royal Mary , named the island when he arrived on Christmas Day , 25 December 1643 .
Simplified: History Captain William Mynors of the British East India Company ship , the Royal Mary , gave the island its name because they arrived on Christmas Day , 25 December 1643 .