The Missoula Floods (also known as the Spokane Floods or the Bretz Floods) refer to the cataclysmic floods that swept periodically across eastern Washington and down the Columbia River Gorge at the end of the last ice age. The glacial flood events have been researched since the 1920s. These glacial lake outburst floods were the result of periodic sudden ruptures of the ice dam on the Clark Fork River that created Glacial Lake Missoula. After each ice dam rupture, the waters of the lake would rush down the Clark Fork and the Columbia River, inundating much of eastern Washington and the Willamette Valley in western Oregon. After the rupture, the ice would reform, recreating Glacial Lake Missoula once again. Geologists estimate that the cycle of flooding and reformation of the lake lasted an average of 55 years and that the floods occurred several times over the 2,000 year period between 15,000 and 13,000 years ago. U.S. Geological Survey hydrologist Jim O'Connor and Spanish Center of Environmental Studies scientist Gerard Benito have found evidence of at least twenty-five massive floods, the largest discharging ~10 cubic kilometers per hour (2.7 million m³/s, 13 times the Amazon River). Alternate estimates for the peak flow rate of the largest flood include 17 cubic kilometers per hour and range up to 60 cubic kilometers per hour. The maximum flow speed approached 36 meters/second (130 km/h or 80 mph).

Sir Patrick Stewart, OBE (born 13 July 1940) is an English film, television and stage actor, who has had a distinguished career in theatre and television. He is most widely known for his television and film roles, such as Captain Jean-Luc Picard in Star Trek: The Next Generation and its successor films, Professor Charles Xavier in the X-Men film series, and as the voice of Avery Bullock in American Dad!.

Stewart was born on 13 July 1940 in Mirfield, near Dewsbury in the West Riding of Yorkshire, England. He is the son of Gladys (née Barrowclough), a weaver and textile worker, and Alfred Stewart, a Regimental Sergeant Major in the British Army who served with the King's Own Yorkshire Light Infantry and previously worked as a general labourer and as a postman.

In a 2008 interview, Stewart said: "My father was a very potent individual, a very powerful man who got what he wanted. It was said that when he strode onto the parade ground, birds stopped singing. It was many, many years before I realised how my father inserted himself into my work. I've grown a moustache for Macbeth. My father didn't have one, but when I looked in the mirror just before I went on stage I saw my father's face staring straight back at me."