Search results
Results from the WOW.Com Content Network
The history of Ohio as a state began when the Northwest Territory was divided in 1800, and the remainder reorganized for admission to the union on March 1, 1803, as the 17th state of the United States.
1805 Cary map of the Great Lakes and Western Territory (Kentucky, Virginia, Ohio, etc.) Integration of the Northwest Territory into a political unit, and settlement, depended on three factors: relinquishment by the British, extinguishment of states' claims west of the Appalachians, and usurpation or purchase of lands from the Native Americans.
Whitney organized the first comprehensive survey of California, and the first complete topographic maps of the state were completed under him. Mount Whitney, the tallest peak in California is named after him. The State Mining Bureau was established in 1880, and the position of State Geologist was changed to State Mineralogist.
The oldest rocks in California date back 1.8 billion years to the Proterozoic and are found in the San Gabriel Mountains, San Bernardino Mountains, and Mojave Desert.The rocks of eastern California formed a shallow continental shelf, with massive deposition of limestone during the Paleozoic, and sediments from this time are common in the Sierra Nevada, Klamath Mountains and eastern Transverse ...
Ohio transitioned to dryland conditions in the Pennsylvanian, forming large coal swamps and the region has been dryland ever since. Until the Pleistocene glaciations erased these features, the landscape was cut with deep stream valleys, which scoured away hundreds of meters of rock leaving little trace of geologic history in the Mesozoic and ...
American period: An enlargeable map of the United States as it has been since 1959. The following timeline traces the territorial evolution of California, the thirty-first state admitted to the United States of America, including the process of removing Indigenous Peoples from their native lands, or restricting them to reservations.
The following is timeline of events surrounding the Toledo War, a mostly bloodless conflict between the State of Ohio and the Michigan Territory in 1835–36, over a 468-square-mile (1,210 km 2) disputed region along their common border, now known as the Toledo Strip after its major city.
The Ohio Country (Ohio Territory, [a] Ohio Valley [b]) was a name used for a loosely defined region of colonial North America west of the Appalachian Mountains and south of Lake Erie. Control of the territory and the region's fur trade was disputed in the 17th century by the Iroquois, Huron, Algonquin, other Native American tribes, and France .