Sarah Clarke

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Close up of periodic table, focus on nickel, copper, zinc, palladium, silver, cadmium

When Was the Periodic Table Invented?

After a perfect launch, spectators try to catch a last glimpse of Space Shuttle Columbia, barely visible at the top end of the twisted column of smoke.

7 Accidents and Disasters in Spaceflight History

Hindu Holi Festival celebrations with colored water, powder and colorful flower petals thrown over celebrants at a Hindu temple in Mathura, Uttar Pradesh, India on March 24, 2021.

Holi: Festival of Colors

Space race (1957-1969) infographic between United States (U.S.) and Russia. America, Soviet Union, U.S.S.R., space exploration

Timeline of the Space Race, 1957–69

A Factory Interior, watercolor, pen and gray ink, graphite, and white goache on wove paper by unknown artist, c. 1871-91; in the Yale Center for British Art. Industrial Revolution England

Inventors and Inventions of the Industrial Revolution

Statue of Liberty in front of the skyline of Manhattan, New York City, New York.

Who Was the Woman Behind the Statue of Liberty?

Lead image for "A Timeline of the World in 8 Maps"

A Timeline of the World in 8 Maps

Sarah Clarke

British administrator

Learn about this topic in these articles:

Black Rod

In Black Rod
In 2017 Sarah Clarke was named Lady Usher of the Black Rod; she was the first woman to be appointed to the office in its more than 650-year history.
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