66号公路上的尘暴区移民

关于此刻

The Dust Bowl was a period of severe dust storms that greatly damaged the ecology and agriculture of the American and Canadian prairies during the 1930s. The phenomenon was caused by a combination of natural factors (severe drought) and human-made factors: a failure to apply dryland farming methods to prevent wind erosion, most notably the destruction of the natural topsoil by settlers in the region. The drought came in three waves: 1934, 1936, and 1939–1940, but some regions of the High Plains experienced drought conditions for as long as eight years.

人物

• Theodoric the Great · 454 CE – 526 CE
• Alfred the Great · 849 CE – 899 CE
• Otto I the Great · 912 CE – 973 CE
• Abbas the Great · 1571 CE – 1629 CE

来源

在维基百科上阅读 ↗