Wisconsin public school observance day required by statute. Leif Erikson was born in Iceland and raised in Greenland. Norse sagas written 300 years after his death describe his explorations, around 1000 CE, of a land he called "Vinland." The location of Vinland remains uncertain, but it is widely believed to be on the North American continent.
Enacted May 10, 1929, from the 1929 Laws of Wisconsin, Chapter 82.
More information and educational resources are available on the Department of Public Instruction Social Studies Education Observance Days website.