Daniel Hale William openned the firat interracial staff hospital. He was the first one in performing an operation on a human heart. He succeded even when there were no blood transfusions, antibiotics or x-rays. He was able to change tactics if he saw that he needed to do that. For example, he was one of the first ones in using the catgun.
Vikings were Norse seafarers, mainly speaking the Old Norse language, who. People from the Viken area were not called ' Viking' in Old Norse manuscripts, but are referred to as .
