1405

Year 1405 (MCDV) was a common year starting on Thursday of the Julian calendar, the 1405th year of the Common Era (CE) and Anno Domini (AD) designations, the 405th year of the 2nd millennium, the 5th year of the 15th century, and the 6th year of the 1400s decade.

July 11: Chinese explorer Zheng He and his crew depart on their first exploration of the world.