Tag: History

Toxoplasma gondii parasites in blood, the causative agent of toxoplasmosis disease, 3D illustration - Illustration( Kateryna Kon)s

How Were Blood Groups Discovered?

October 11, 2019 Humans

Skillful beautician preparing to shave stubble - Image( Olena Yakobchuk)s

When Did Humans Start Shaving—And Why?

September 23, 2019 Humans

Seven wonders of the modern world vector illustration Great Wall of China Petra The Colosseum Chichen Itza Machu Picchu Taj Mahal Christ the Redeemer - Vector( Angelica Ermakova)s

What Are The Seven Wonders Of The Modern World?

September 21, 2019 Social Science

earth round measurement

How Did People Figure Out That The Earth Was Round Without Any Technology?

September 9, 2019 Eye Openers

$open book with pages - literature and education - mathematics textbook and math symbols - Image(kaprik)s$

When And Why Did We Start Using Math Symbols ?

September 4, 2019 Pure Sciences

OCT 1, 2017 Adolf Hitler, the leader of the Nazi Party who initiated World War II in Europe, Madame Tussauds Berlin wax museum. - Image( Anton_Ivanov)s

Why Do People Take Orders Even When They Know It Can Cause Harm?

August 23, 2019 Social Science

Businessman to have red high heels - Image(beeboys)s

Why Did Men Stop Wearing Heels?

August 23, 2019 Eye Openers

German two-seat biplane, carries out a display at Old Warden during the Shuttleworth Military Airshow. - Image(Kev Gregory)s

Why Are Biplanes Not Commonly Seen Anymore?

August 17, 2019 Technology

BARCELONA, SPAIN - MARCH 24 Samuel Sanchez of Euskaltel Team wins the 6th stage of the Volta a Catalunya cycling race, on March 24, 2012, in Badalona, Barcelona, Spain. - Image(Natursports)S

How To Win The Tour De France

August 9, 2019 Sports

First space shuttle launch on April 12, 1981. Astronauts John Young and Robert Crippen spent 54 hours in Earth orbit( Everett Historical)s

How Did World War Two Change Rocket Technology?

August 5, 2019 Eye Openers

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