1 mayo 1924 año - Salt fortified
with iodine
Descripción:
 Iodized salt became available for sale in Michigan on May 1, 1924.
Source:
Leung AM, Braverman LE, Pearce EN. History of U.S. iodine fortification and supplementation [published correction appears in Nutrients. 2017 Sep 05;9(9):]. Nutrients. 2012;4(11):1740-1746. Published 2012 Nov 13. doi:10.3390/nu4111740 
Añadido al timeline:
fecha:
1 mayo 1924 año
Ahora mismo
 ~ 101 years ago