The ancestors of living Native Americans arrived in what is now the United States at least 15,000 years ago, possibly much earlier, from Asia via Beringia.
Insects evolved from a group of crustaceans. The first insects were land bound, but about 400 million years ago in the Devonian period one lineage of insects evolved flight, the first animals to do so.
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in 1959, Leakey was working in the famous site Olduvai Gorge in Tarzania when she discovered an approximately 1.75 million year old fossil skull of a new.
-Mary Leakey developed a system for classifying the stone tools found at Olduvai. she discovered the Laetoli footprints, and at the Laetoli site she discovered hominin fossils that were more than 3.75 million years old. During her career, Leakey discovered fifteen new species of animals.
2. Lucy was named after the Beatles' song "Lucy in the sky with diamonds" a huge beatles fan, johanson had the whole camp of scientist listening to the bank during their archaeological specition. when "Lucy in the sky with diamonda" played. inspiration sparked.
3. Archeologists investigate historic and prehistoric sites and physical remains to undestand human links to the past and to preserve past culture. before, during and after the dig, the archaeologist records notes, images, soil samples, maps, measurements, and other information about the archaeological site.
There were several factors that inspired the Latin American independence movements in the early 1800s. One factor was the success of the American Revolution. Our revolution showed other countries that it was possible to rebel against a strong colonial power. Our revolution also explained under what circumstances a revolution would be justified. The people in the Latin American countries believed these conditions existed in their countries.
Furthermore, the people in Latin American countries weren’t happy with the rule by Spain. The Spanish wouldn’t allow free trade. The colonies had to trade with Spain, even if they could get products cheaper from other countries. The Spanish rarely gave government jobs to people born in the Americas. These jobs went to people born in Spain. This made many people, especially the Creoles, unhappy. When Napoleon invaded Spain in 1808, the door was open for the revolutions to begin. Napoleon’s brother now ruled Spain, and people in the colonies felt no loyalty to him. Which lead for the people of Latin America to know that is was a good time to revolt against Spain.
Also, many Latin American countries became independent between 1810-1825.
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The most pressing points of tension with European nations were eliminated during the first half of the century: purchase of the Louisiana Territory from France in 1803 gave the United States control over the heartland of the
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