Samoa Time Zone is UTC−11, not UTC−10

Included Wayne Co., KY, in Central Time Zone between 1960 to 2000

Included Upper Peninsula of Michigan in Central Time between 1936 and 1969

Included Mellette, Todd counties in Mountain Time Zone prior to 2003

Added Doughboy monument

Added missing end date

Collapsed span extends further north

Added Francis Scott Key Bridge

Added changes to U.S. time zone boundaries from 1919 to 1923

Added changes to U.S. time zone boundaries from 1922 to 1930

Fixed gap in Missoula Co., MT, boundary relation

Fixed gaps in North Carolina, Virginia boundary relations

Updated business

Deleted redundant boundary relations from changeset 113685 superseded by changeset 113688

Added changes to U.S. time zone boundaries from 1922 to 1930

Fixed start date of Mountain Time Zone boundary; fixed typo in start_event

Added changes to U.S. time zone boundaries from 1930 to 1940

Added changes to U.S. time zone boundaries from 1930 to 1940

Added changes to U.S. time zone boundaries from 1930 to 1940

Fixed typo in start_event