Learn more. Migraine is severe pain felt on one or both sides of the head, normally occurring around the temples or behind one eye or ear. Learn more. Back pain is more common in people with anxiety and mood disorders than those without them. Illness, accidents, and infections are among the causes of back pain.
The vast territory included all of the land located generally west of Pennsylvania, northwest of the Ohio River, and east of the Mississippi River. It encompassed what would become the states of Ohio, Indiana, Illinois, Michigan, and Wisconsin, as well as the northeastern part of Minnesota. In 1803, Ohio was the first state created from the vast lands of the Northwest Territory. It was followed by Indiana, Illinois, Michigan, Wisconsin and Minnesota, all then a part of the Indiana Territory.
In 1853, the portion of the territory north of the lower Columbia River and north of the 46th parallel east of the river was organized into the Washington Territory. On February 14, 1859, the territory entered the Union as the U.S. state of Oregon within its current boundaries. The remaining eastern portion of the territory (the portions in present-day southern Idaho and western Wyoming) was added to the Washington Territory.