- Encyclopedia of Cleveland History (case.edu)
Originating in the Case Western Reserve University’s Department of History, the Encyclopedia of Cleveland History represents the contributions of hundreds of academic scholars and talented amateur historians to the interpretation and understanding of the history of Greater Cleveland. Its two printed editions (1987 and 1996) and its on-going World Wide Web edition are acknowledged landmarks in the presentation of urban history. Used as a reference by scholars, students, and interested citizens across the globe, the Encyclopedia has brought notice and credit to the city of Cleveland, Case Western Reserve University, and the Western Reserve Historical Society.
- Vashon Glaciation (Wikipedia)
The Vashon Glaciation, Vashon Stadial or Vashon Stade is a local term for the most recent period of very cold climate in which during its peak, glaciers covered the entire Salish Sea as well as present day Seattle, Tacoma, Olympia and other surrounding areas in the western part of present-day Washington of the United States of America. This occurred during a cold period around the world known as the last glacial period. This was the most recent cold period of the Quaternary glaciation, the time period in which the arctic ice sheets have existed. The Quaternary Glaciation is part of the Late Cenozoic Ice Age, which began 33.9 million years ago and is ongoing. It is the time period in which the Antarctic ice cap has existed.