Profile America: Lost Days

Wednesday, September 11th. This was a day that didn’t exist in Colonial America in 1752, as the familiar calendar underwent what is called the “Gregorian correction,” switching from the ancient Julian calendar to adjust for errors accumulated over centuries.

The British Museum – Gregorian Calendar

After September 2nd, the next day was September 14th. The British parliament’s Calendar Act of 1750 had also changed New Year’s Day from March 25th to January 1st.

As a result, the year 1751 had only 282 days. Since then, with leap years built in as in 2020, the calendar has remained constant. Calendar production engages some of the country’s 24,000 printing establishments, which employ around 390,000 workers.

Profile America is in its 23rd year as a public service of the U.S. Census Bureau. You can find more facts about America from the U.S. Census Bureau online.