Around 4000 B.C., Egyptians begin using boats with sails to ply the eastern Mediterranean and the Nile River. These primitive square-sailed ships help give rise to early dynastic Egypt by facilitating travel, trade, and war.
Tomb of Ipy, Deir Al-Medinah; Photograph by Thomas Abercrombie
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Learn More About Exploration
How deep is the deepest part of the ocean? What was Sir Francis Drake's claim to fame? Test your ocean exploration IQ in this online quiz.
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Find out when the first compass was invented. See the highlights of human land exploration in this photo time line.
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Conquer Your Neck
Introducing the arcitec electric razor.