The December 1989 United States cold wave was a series of cold waves into the central and eastern United States from mid-December 1989 through Christmas...

year. In the United States, a cold spell is defined as the national average high temperature dropping below 20 °F (−7 °C). A cold wave of sufficient...

The January–March 2014 North American cold wave was an extreme weather event that extended through the late winter months of the 2013–2014 winter season...

American cold wave was an extreme weather event that brought record low temperatures to a significant portion of Canada, the United States and parts...

1899 December 1989 United States cold wave 1994 North American cold wave January–March 2014 North American cold wave February 2015 North American cold wave...

Eastern bloc. The post–Cold War era saw a period of unprecedented prosperity in the West, especially in the United States, and a wave of democratization throughout...

to the problems of the second wave, rather than just another movement. The second wave of feminism in the United States came as a delayed reaction against...

American cold wave was an extreme weather event that occurred across most of Canada and the contiguous United States, including parts of the Western United States...

This section of the timeline of United States history concerns events from 1970 to 1989 1970 – The first Earth Day is observed. 1970 – Kent State and...

The Cold War was a period of geopolitical tension between the United States and the Soviet Union and their respective allies, the Western Bloc and the...