Data Model specification and limits - Related links. 1  Create a memory-efficient Data Model using Excel and the Power Pivot add-in. 2  Workbook Size Optimizer download. 3  Power Pivot: Powerful data analysis and data modeling in Excel.
By 1916, over half of the U.S. states already had statutes that prohibited alcohol. In 1919, the 18th Amendment to the U.S. Constitution, which prohibited the sale and manufacture of alcohol, was ratified. It went into effect on January 16, 1920.
The 21st Amendment Is Ratified. On December 5, 1933, the 21st Amendment to the U.S. Constitution was ratified. The 21st Amendment repealed the 18th Amendment, making alcohol once again legal. This was the first and only time in U.S. history that an Amendment has been repealed.