Mary Lesnefsky (1909 - 1990)

Refresh this page to see various historical events that occurred during Mary's lifetime.

In 1909, in the year that Mary Lesnefsky was born, the NAACP was founded by W. E. B. Du Bois. The organization focused on legal strategies designed to confront the critical civil rights issues of the day - which included lynching and segregation in schools. The goal was to secure for all people the rights guaranteed in the 13th, 14th, and 15th Amendments to the United States Constitution.

In 1918, Mary was only 9 years old when following European countries, Daylight Saving Time went into effect in the United States in March. It was an effort to conserve fuel needed to produce electric power. This was a war effort and proved unpopular so in most areas of the United States, Daylight Saving Time ended after World War I. It returned during World War II.

In 1945, she was 36 years old when on December 5th, Flight 19 was lost in the Bermuda Triangle. All five planes and 14 airmen disappeared, as did 13 crew on a plane that was dispatched to find them. The official Navy reported the disappearance as "cause unknown".

In 1965, when she was 56 years old, on March 8th, the first US combat troops arrived in Vietnam. The 3500 Marines joined 23,000 "advisors" already in South Vietnam. By the end of the year, 190,000 American soldiers were in the country.

In 1990, in the year of Mary Lesnefsky's passing, on April 24th, the Hubble telescope was launched into space after long delays due to the Challenger explosion. An optical flaw was found within weeks of launch but was fixed within three years. The discoveries made possible by the Hubble have contributed to scientists' understanding of the universe.