1000

1000 (M) was a leap year starting on Monday in the Julian calendar.  In the proleptic Gregorian calendar, it was an exceptional common year starting on Wednesday.  It was the last year of the 1st millennium and 10th century.

It is one of the only seven years to use just one Roman numeral. The seven are 1 AD (I), 5 AD (V), 10 AD (X), 50 AD (L), 100 AD (C), 500 AD (D), and 1000 AD (M).

 Events 
 Leif Ericson becomes the first European to visit America
 Gunpowder is invented in China.
 Dhaka, Bangladesh, is started.

 Births 
 July 5 – Robert I, Duke of Normandy, French nobleman; father to William the Conqueror (died 1035)
 King Stephen I of Hungary, Hungarian royal (died 1038)
 Pope Clement II (died 1045)
 Pope Damasus II (died 1047)
 Pope Sylvester IX (died 1049)
 Saint Herfast, French bishop; first Lord Chancellor of England (died 1085)