HOW DID TRADERS CROSS THE SAHARA DESERT? WHICH AFRICAN GOODS WERE HIGHLY PRIZED? TIMBUKTUSWAHILIOBASFIND OUT MOREFrom around AD 750 to 1500, lands to the south of Africa’s Sahara Desert were home…
Attempts at UnificationTheories of the UniverseSupersymmetry, Superpartners, and SupermanAttempts at UnificationQuantum Mechanics vs. General RelativitySymmetry BreakingIntroducing SUSY…
Cholera: Scourge of the PoorWater-Borne Diseases: Cholera and DysenteryIntroductionCholera: Scourge of the PoorEpidemic Dysentery Drinking water can be contaminated during natural disasters such as…
Beastly Chores: The First Four LaborsClassical MythologyThe Labors of HeraclesTraining a HeroBeastly Chores: The First Four LaborsEven More Beastly Chores: The Second Four LaborsThe Far Corners of…
Preservation and conservation milestones in the United States by Holly Hartman 1840s–1860s1870s–1880s1890s–1920s1930s–1960s1970s1980s1990s2000sMost Recent Entry 1849 The U.S.…
Source: The U.S. Secret Service Counterfeiting of money is one of the oldest crimes in history. It was a serious problem during the 19th century when banks issued their own currency. At the time of…
“When in Rome, do as the Romans do” is a famous saying about customs. But what exactly do the Romans and other people do that is so different? Where do women wear rings in their noses to show they…
Facts and Figures About Twisters Although tornadoes can happen at any time of year, they are especially common during the spring and early summer. May and June are the peak months in terms of…
HOW WERE THE SUMERIAN CITIES RULED? HOW WERE THE ZIGGURATS BUILT? FIND OUT MOREMesopotamia is the land between the Tigris and Euphrates rivers. Farmers used the river water to irrigate fields and…
