Certain factors can exacerbate the patches of dry skin that develop around your mouth. This includes frequently licking your lips, according to NetDoctor. If you live in a cold climate, cold weather can dry the skin, causing patches to develop on the lips.
Seven months after being released from Landsberg jail, Nazi leader Adolf Hitler publishes the first volume of his personal manifesto, Mein Kampf.
April 1939 The Grapes of Wrath is published. The book The Grapes of Wrath by John Steinbeck is published. The book is about a family that is forced to leave home and try to find work in California during the Great Depression.