Georgetown

Dutch Republic de facto · 1789 – January 19, 1795 (from the border data)
Batavian Republic de facto · January 19, 1795 – April 21, 1796 (from the border data)
Great Britain de facto · April 22, 1796 – December 31, 1800 (from the border data)
United Kingdom de facto · 1801 – March 26, 1802 (from the border data)
Batavian Republic de facto · March 27, 1802 – August 31, 1803 (from the border data)
United Kingdom de facto · September 1, 1803 – May 25, 1966 (from the border data)
Guyana de facto · since May 26, 1966 (from the border data)