The unboxing of the STATUE OF LIBERTY in 1885. Most people in America don't know that this piece was sent in boxes from France. Also, the designer of the statue was Gustave Eiffel, same person who designed the Eiffel tower. There are some really cool photoes of the statue of liberty when it was first constructed in paris with the old town all around it.
Trinity Bomb: The first atomic bomb is readied for testing near Alamogordo, New Mexico, in July 1945.
George A. Van Biesbroeck (1880-1974), astronomer at Yerkes Observatory observing Mars when it approached close to the earth in 1926, and using the 40 inch refracting telescope, the largest of its kind in the world