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When was toothpaste invented?

Ancient toothpaste served the same purposes as modern toothpastes, such as cleaning teeth and preventing infection, but contained very different ingredients. Ancient Egyptians formulated toothpaste from substances including burned and crushed eggshells, ground hooves and spices. Although ancient Egyptians receive credit for producing toothpaste, other ancient civilizations in Greece and Rome quickly followed suit. Greeks and Romans, however, added thicker and coarser substances, such as bones, to thicken pastes. Romans improved pastes to control bad breath with the addition of bark and charcoa..

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What were some of the jobs available during the Great Depression?

During the height of the Great Depression, 37 percent of all nonfarm workers were without jobs. It was a time when families fell apart and people lost their homes and farms. Farmers couldn't sell their crops, so more than 750,000 farms were lost to foreclosure and many people starved. Women and children found jobs where they could, and the men, whose job it was to support their families, felt useless when they had to rely on their families to support them.The Depression brought with it a halt to industrial production and construction. African-American women were often the first to be laid..

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How did imperialism contribute to World War I?

Imperialism, an unequal relationship often found in the forms such as empires and forced upon other countries and individuals, led Europeans to keep a close watch on their access to markets, raw materials and returns on investments by taking straightforward political and military control on the undeveloped world.

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What event ended Reconstruction?

The Compromise of 1876 was a promise between Republican presidential candidate Hayes and Democrats in Congress. If the Democrats agreed to his election, he would recognize Democratic control of the South. Hayes also included a promise to withdraw troops from the south in his campaign. At the end of Reconstruction, the white southerners who had disenfranchised African-Americans regained control of the region.

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Why did Saddam Hussein attack Kuwait?

Hussein's forces invade Kuwait, a border country, in August 1990 with a force of 100,000 Iraqi troops in trucks, helicopters and tanks. At the time, Iraq had the fourth-biggest military in the world. The forces reached Kuwait City within an hour of the invasion and began an attack against the royal residence, killing the emir's brother. The Iraqi forces tortured and killed Kuwaiti citizens and others, looted their properties and set fire to 700 oil wells in the Persian Gulf.Operation Desert Storm lasted until February 28, 1991. Coalition forces from 34 separate nations battled Iraq. ..

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Who ruled Ancient Greece?

Phillip's son, Alexander III, also called Alexander the Great, is one of the most famous rulers of ancient Greece. He invaded the Persian empire and conquered much of the civilized world between 333 B.C. and 326 B.C. Other famous rulers include Pericles (died 429 B.C.), who ordered the building of the Parthenon and advanced democracy in Athens, and Epaminondas (410 B.C. to 362 B.C.), who lead the city-state of Thebes from Spartan subjugation to a position of importance in Greek politics.

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How did cavemen survive?

Neanderthals used circulating mobility to create a number of temporary camps that were spread throughout their hunting grounds in a particular region, some of which were caves. This gave them the ability to move from place to place while they searched for the best hunting grounds. They used radiating mobility to hunt for food around one central camp. Hunting parties left the central camp and moved farther away to find food. The hunting parties always returned to their camp site after food was located. The majority of their central camp sites were caves because they suited the needs of the Nean..

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What was the social structure of ancient Songhai?

Based on a caste system, Songhai society predominantly looked to the emperor for leadership. His authority presided over social, religious and political matters. Those with links to the imperial family were considered to be leaders in their fields, such as governors, educators, ministers and educators. While not actually belonging to the government, the elite class heavily influenced governmental affairs.The citizen caste primarily worked in the agricultural industry or within the military. They had the option to change their social standing by earning their way into elite society via apprenti..

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Who are some famous African-American historical figures?

Booker T. Washington was born into slavery and became an author, speaker, educator and occasional adviser to Presidents Theodore Roosevelt and William Howard Taft. He is famous for promoting the advancement of African-Americans through education and financial success, and for establishing Tuskegee University.\nGeorge Washington Carver was a former slave, botanist and inventor. He brought world acclaim to Tuskegee's agricultural department by developing new agricultural techniques. He is best known for inventing over 100 products from the peanut, including plastics, paints and a form of ga..

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In what did the Indians of the Southwest live?

Native American tribes typically used whatever materials were available to them to build both temporary and long-term housing. The sand and hot desert sun of the Southwest made the perfect combination for adobes, which are basically structures made of dried sand or dirt mixed with water. Similarly, in more wooded areas where the ground was comprised primarily of dirt, native tribes would sometimes dig holes in the earth and then use dried mud, leaves and branches to create a roof.

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