National Guacamole Day, National Cinnamon-Raisin Bread Day and National Play-Dough Day in United States
National Guacamole Day, National Cinnamon-Raisin Bread Day and National Play-Dough Day in United States is held on September 16. This event in the second decade of the month September is annual. 
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Guacamole was invented by the Aztecs. The podcast Gastropod reports that avocados were first used as tributes from townsfolk to local royalty in Mesoamerica 7,000 years ago. California leads the U.S. production of avocados.
Cinnamon-raisin bread has a long history in the making. Its predecessors include stollen, a German fruit bread with spices and candied fruits, kulich, a tall Easter bread served in the Russian and Slavic regions, and panettone, a tall raisin-filled fruit cake made in Italy.
On September 16 is National Play Dough Day, which is the perfect excuse to make some homemade play dough. The main benefit of sensory play—activities that stimulate a child’s sense of touch, smell, taste, sight and hearing — is that it’s one of the best ways children learn about the world around them.
Similar holidays and events, festivals and interesting facts
National Double Cheeseburger, National Creme de Menthe Day and National Linguini Day in USA on September 15
National Cheese Toast Day in USA on September 15
Bad Homburg Apple Day on September 15 (Held on the third Sunday in September);
National Apple Dumpling Day and National Monte Cristo Sandwich Day in USA on September 17
International Guinep Day on September 17
World Water Monitoring Day on September 18
National Cheeseburger Day in USA on September 18