Tiktaalik is a transitional fossil; it is to tetrapods what Archaeopteryx is to birds, troodonts and dromaeosaurids. 1  While it may be that neither is ancestor to any living animal, they serve as evidence that intermediates between very different types of vertebrates did once exist.
Minnesota became a part of the United States as the Minnesota Territory in 1849, and became the 32nd U.S. state on May 11, 1858.
West Virginia and Nevada became states during the Civil War. Kansas became a state on January 29, 1861, after the secession began, but before the war started on April 12, 1861. West Virginia and Nevada became states during the Civil War. Kansas became a state on January 29, 1861, after the secession began, but <i><b>before</b></i> the war started on April 12, 1861.