Add boundary for the United States (1842-1845) part 4

Add boundary for the United States (1842-1845) part 3

Add boundary for the United States (1842-1845) part 2

Add boundary for the United States (1842-1845)

fix United State 1783-1803 relation part 3

fix United State 1783-1803 relation part 2

fix United State 1783-1803 relation part 1

Fix minor error in Florida-Georgia border

Fix West Germany label

Fix East Germany and West Germany relations

Correct Luxembourg-France border

Fix Elliot County, Kentucky

Add Bradford, Massachusetts

Add Vatican City-Italy border to Italy (1954-) and (1946-1954)

Add San Marino-Italy border to Italy (1954-) and (1946-1954)

Add Wikidata item to Lexington, Kentucky

Add Lexington, Kentucky

Correct end_date for Charlestown, Massachusetts

add Dalton, Massachusetts

fix end date