Curated OER
Educational Technology Clearinghouse: Maps Etc: Pre Colonial Africa, 1872
A map of Africa showing the continent prior to the Berlin Conference of 1885, when the most powerful countries in Europe at the time convened to make their territorial claims on Africa and establish their colonial borders at the start of...
Curated OER
Educational Technology Clearinghouse: Clip Art Etc: Christopher Columbus
Christopher Columbus (between August 25 and October 31, 1451 - May 20, 1506) was a Genoese navigator, colonizer and explorer whose voyages across the Atlantic Ocean-funded by Queen Isabella of Spain-led to general European awareness of...
Curated OER
Etc: Maps Etc: Population of North America, 1898
A map from 1898 showing the population distribution of North America, Central America, and Caribbean to Puerto Rico. The map shows areas of sparse to heavily populated concentrations at the time. "Many thousands of white men from western...
Libre Text
Uc Davis Geo Wiki: Newton's 2nd Law
The wind blowing over your house, the Gulf Stream flowing into the North Atlantic Ocean from Florida to Europe, the jet stream at 10 km altitude. All these different flows in the atmosphere and in the ocean can be understood using ideas...