Mary Cooley (1883 - 1974)

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

In 1883, in the year that Mary Cooley was born, from August 26th through August 27th, Krakatoa - in Indonesia - erupted. 70% of the island - 163 villages - were destroyed and more than 36,400 people were killed by the eruption and the tsunami resulting from it. It was one of the deadliest volcanic eruptions ever.

In 1907, she was 24 years old when radiometric dating, a recently discovered technology that could date rocks, found that the earth was 2.2 billion years old which was dramatically older than previously thought. Later refinements and advancements in science would date the age of the earth at over 4.5 billion years.

In 1910, at the age of 27 years old, Mary was alive when Thomas Edison introduced his kinetophone, which he hoped would make "talkies" a reality. But the sound wasn't synchronized to the pictures and only 45 Kinetophones were made.

In 1956, at the age of 73 years old, Mary was alive when this was the year that the King of Rock and Roll, Elvis Presley, became an international sensation. He began the year as a regional favorite and ended the year with 17 recordings having been on the Billboard’s Top 100 singles chart, 11 TV appearances, and a movie. Elvis scandalized adults and thrilled teens.

In 1974, in the year of Mary Cooley's passing, on February 5th, Patty Hearst, age 19 - granddaughter of William Randolph Hearst and daughter of publisher of the San Francisco Examiner Randolph Hearst - was kidnapped by the Symbionese Liberation Army, a left wing terrorist group. She was found, alive, 19 months later.