On September 17, 1787, the Constitution of the United States was signed in Philadelphia, Pennsylvania.
In 1849 on this same day in September, Harriet Tubman escaped to freedom in Philadelphia, but soon returned to Maryland to rescue her family. She made at least 13 trips into the slave-owning South to liberate more than 70 slaves before the Civil War — in which she served as a spy for the North.
September 16 marks the Independence Days for Mexico (celebrating the declaration of independence from Spain in 1810) and Papua New Guinea (commemorating the exit from Australia in 1975).
On September 15, 1820, an uprising occurred in Lisbon, Portugal, following similar insurrection in Porto the previous month. This was no bloodthirsty mob, but, instead, a popular demand for constitutional government. Unfortunately, the country was beset with imperial and monarchical problems for some time to come.
The United Nations established September 15 as International Day of Democracy, in 2007. An Independence Day is celebrated on this date in Guatemala (a Patriotic Day), El Salvador, Honduras, Nicaragua, and Costa Rica, commemorating independence from Spain in 1821.
In 1752, throughout the British Empire, September 2 was followed, the next day, by September 14, as the government adopted the Gregorian calendar, skipping eleven days.
On September 14, 1944, Maastricht becomes the first Dutch city to be liberated by allied forces.
John Calvin [pictured above] returned to Geneva on September 13, 1541, after three years of exile. His subsequent work in church reform and theology became known as Calvinism, and profoundly influenced the course of European and (eventually) American culture, including several concepts of servitude and liberty.
On the same date in 1989, Desmond Tutu led South Africa’s largest march aganst Apartheid.
On September 12, 1848, Switzerland became a unified federal state with a constitution limiting central government powers and providing decentralized state (canton) power patterned on the U.S. Constitution.
In 1880 on this date, H.L. Mencken was born. One of his earliest books was a debate with a socialist, The Men versus The Man (1910); his greatest lasting contribution was probably The American Language (1919) and its supplements (1945, 1948). His work has been collected in numerous anthologies, such as Alistair Cooke’s Vintage Mencken (1955) and the author’s own Mencken Chrestomathy.