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sexual reproduction
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Crazy in love: Why some animals eat their mates
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Young boys working in a thread spinning mill in Macon, Georgia, 1909. Boys are so small they have to climb onto the spinning frame to reach and fix broken threads and put back empty bobbins. Child labor. Industrial revolution
The Rise of the Machines: Pros and Cons of the Industrial Revolution
January 21, 2019: Superbowl LIII will be played at Atlanta's Mercedes-Benz Stadium on Sunday, February 3, 2019 against the New England Patriots and the Los Angeles Rams.
What Was the Super Bowl’s First Blockbuster Commercial?
Chapter 4 pg 42 - Chapter header of The Adventures of Tom Sawyer by Mark Twain. Published in 1884 by The American Publishing Company
Periods of American Literature
African Americans demonstrating for voting rights in front of the White House as police and others watch, March 12, 1965. One sign reads, "We demand the right to vote everywhere." Voting Rights Act, civil rights.
Timeline of the American Civil Rights Movement
Ice Sledge Hockey, Hockey Canada Cup, USA (left) vs Canada, 2009. UBC Thunderbird Arena, Vancouver, BC, competition site for Olympic ice hockey and Paralympic ice sledge hockey. Vancouver 2010 Olympic and Paralympic Winter Games, Vancouver Olympics
10 Best Hockey Players of All Time
Vietnam War. U.S. President Lyndon B. Johnson awards the Distinguished Service Cross to First Lieutenant Marty A. Hammer, during a visit to military personnel, Cam Ranh Bay, South Vietnam, October 26, 1966. President Johnson
Vietnam War Timeline
Small, white rat (genus Rattus) on a glass table. (rodent, laboratory, experiment)
Cruel and Unusual Punishments: 15 Types of Torture

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Key People

William Harvey
William Harvey
English physician
Lazzaro Spallanzani, detail of an oil painting by an unknown artist; in the collection of the University of Pavia, Italy.
Lazzaro Spallanzani
Italian physiologist
Christian Konrad Sprengel
German botanist
Purkinje, Jan Evangelista
Jan Evangelista Purkinje
Czech physiologist
Nathanael Pringsheim.
Nathanael Pringsheim
German botanist
Albert Francis Blakeslee
American botanist
Douglas Campbell
Douglas Houghton Campbell
American botanist
Josef Gottlieb Kölreuter
German botanist
Robert Almer Harper
Robert Almer Harper
American biologist
Rudolph Jacob Camerarius
German botanist