Answers (1)
April 14, 1935
"The day remembered by many who lived through it as the worst day of the decade was "Black Sunday", April 14, 1935. An incredibly thick dust storm terrified those who saw it. Historian Paul Bonnifield calls this storm a "roller" because the cloud of black dirt seemed to roll across the region. In Pampa, Texas Woody Guthrie saw the storm coming and began to pen the famous song: "So Long, It's Been Good To Know You." His inspiration came from fear that his life had come to an end. Margie Daniels of Hooker, Oklahoma relates the reaction of some who had been on a jackrabbit roundup to "Black Sunday": "It was starting to get dark. And you know, some people felt that was the wrath of God coming up [sic.] on them when they'd killed all those rabbits like this." An Associated Press reporter, Robert Geiger wrote a story about "Black Sunday" and used the term "dust bowl"; throughout the nation this became the phrase applied to the Plains region."
http://www.johncletheroe.org/usa_can/usa/dbowl2.htm
http://www.altereddimensions.net/earth/DustBowlAndBlackSunday.aspx