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.
This Day In History: 08/21/1959 - Hawaii Becomes 50th State. On this day in 1959, the modern United States receives its crowning star when President Dwight D. Eisenhower signs a proclamation admitting Hawaii into the Union as the 50th state.n this day in 1959, President Dwight D. Eisenhower signs a bill making Hawaii the 50th state. Ike, as Eisenhower was known, entered the White House in 1953 in charge of 48 states; two more had been added by the time he left office in 1961. During his 1952 presidential campaign,...