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Build Your Own Interactive Timeline Using the extraordinary Exhibit and Timeline scripts written by MIT's SIMILE project and the flexible power of Google Docs spreadsheets, it's now possible to build custom, interactive, and searchable timelines for use in your research and your teaching.
We took our collection of 550 Free Online Courses from Great Universities and did a back-of-the-envelope estimate of the total number of hours of free audio/video lectures it offers. A conservative estimate puts it north of 15,000 hours.
World War II and the Postwar Period The United States entered World War II in 1942. During the war, immigration decreased.
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Our species is an African one: Africa is where we first evolved, and where we have spent the majority of our time on Earth. The earliest fossils of recognizably modern Homo sapiens appear in the fossil record at Omo Kibish in Ethiopia, around 200,000 years ago. Although earlier fossils may be found over the coming years, this is our best understanding of when and approximately where we originated.