onthisday.comWhat Happened on December 20, 1780️Wed Dec 20 1780 Home By Year 1780 December 20 Historical Events Britain declares war on Holland 1780 Highlights About December 20, 1780 Calendar: Gregorian Day of the Week: WednesdayHow Long Ago? 244 years, 3 months and 5 days Leap Year: Yes
Historical Events Britain declares war on Holland 1780 Highlights About December 20, 1780 Calendar: Gregorian Day of the Week: WednesdayHow Long Ago? 244 years, 3 months and 5 days Leap Year: Yes