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early 19th century (?)
ca. 1800
after 1787
late 18th century
ca. 1787
ca. 1776–81
ca. 1775–85
1765–75
ca. 1770–75
ca. 1763–71
ca. 1762–75
ca. 1762–70
ca. 1760
ca. 1760–70
ca. 1756
ca. 1750–56
ca. 1750–60
