1. On November 22, 1916, the first known case of Dutch Elm disease in North America was identified in Portland, Oregon. This devastating fungal disease would go on to decimate elm trees throughout the region and beyond.

2. In 2011, November 22 was declared "Bill Naito Day" in honor of the beloved Portland businessman and philanthropist who helped shape the city's downtown landscape through his work on such projects as Pioneer Courthouse Square and the Portland Saturday Market.

3. November 22, 1963, is also notable as the day that President John F. Kennedy was assassinated in Dallas, Texas. The event remains one of the most significant and controversial moments in American history, and has been the subject of countless books, films, and other media.

4. Oregon's largest and most controversial dam, the Dalles Dam, was completed on November 22, 1961. The structure spans the Columbia River between Wasco and Sherman counties, and is capable of producing up to 1,800 megawatts of electricity.

5. Finally, November 22 is also recognized in Oregon as "Native American Heritage Day," a day to honor the contributions and cultures of the state's many indigenous communities. The holiday was officially recognized by Governor John Kitzhaber in 2013, and is celebrated with cultural events and educational activities throughout the state.