Birthdays & Historical Events – January 20

← National Days on January 20

Birthdays & Historical Events – January 20

Historical Events on January 20

Events that occurred on January 20 throughout history

1870

Sisters Victoria Woodhull and Tennessee Clafin open the

Sisters Victoria Woodhull and Tennessee Clafin open the first woman-owned brokerage firm in the United States.

1887

The United States Senate amends and extends the 1875

The United States Senate amends and extends the 1875 reciprocity treaty with Hawaii securing a lease to Pearl Harbor as a Naval Base.

1920

Irwin W

Irwin W. Cox registers the trademark for the steel-wool product called "SOS." The initialism for the shaved steel wool saturated with soap stood for "Save Our Saucepans."

1964

The Wisconsin Cheese Foundation sponsors the making of the

The Wisconsin Cheese Foundation sponsors the making of the world's largest block of cheese ever made. At midnight, the process began at Steve's Cheese in a factory near Denmark, Wisconsin.

1998

Researchers at the University of Massachusetts and Advanced

Researchers at the University of Massachusetts and Advanced Cell Technology announced the successful cloning of calves that may have produced medicinal milk.

2009

The inauguration of the 44th President of the United States takes place

The inauguration of the 44th President of the United States takes place. President Barack Obama becomes the first African American to serve as a U.S. president. January 20th Celebrated Birthdays