Event:
Former U.S. Presidential candidate Tim Pawlenty resigns from Mitt Romney's Presidential campaign, planning instead to work for the Financial Services Roundtable in Washington, D.C.
More Notable Events on September 20: 1990 Both Germanys ratify reunification
1985 Walt Disney World receives its 200-millionth guest
1967 British liner Queen Elizabeth II launched at Clydebank, Scotland
1945 German rocket engineers begin work in U.S.
1904 Orville and Wilbur Wright fly a circle in their Flyer II
