Today in history

October 20: historical facts and curiosities

What happened on this date in history? Explore landmark events, discoveries, and curiosities from October 20.

Curiosity for 2028-10-20

Today is a great day to plan ahead and organize your upcoming commitments.

Source: gemini

Curiosity for 2027-10-20

Today is a great day to plan ahead and organize your upcoming commitments.

Source: gemini

Defining the US-Canada Border

On October 20, 1818, the United States and the United Kingdom signed the Convention of 1818. This treaty established the 49th parallel as the permanent border between the U.S. and British North America (now Canada) from the Lake of the Woods to the Rocky Mountains. It also set joint occupation of the Oregon Country and formalized fishing rights, creating a peaceful, enduring international boundary.

Source: gemini

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