There have been couple of times when the oscars have been delayed.
In 1938 the oscars were delayed by nearly a week due to heavy flooding in Los Angeles.
In 1968,again after a long gap,due to the funeral of Martin Luther King, Jr,the date of the oscar was shifted from April 8th to April 10th.The funeral was held on April 9th.
In 1981,the oscars was delayed by 24 hours due to an assasination attempt on President Reagan.
In 2003,the Red Carpet area was restricted to the area in front of the theatre door and the bleachers were excluded because of the US troop invasion of Iraq which happened very recent to the Oscars.
