National Cheese Pizza Day in USA
National Cheese Pizza Day in USA is held on September 5. This event in the first decade of the month September is annual. 
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Unfortunately, no one is really sure who started National Cheese Pizza Day. $40 billion – The size of the pizza industry in the U.S. 46 – Slices of pizza eaten each year by the average person. 6,600 – Pizzerias in California, more than any other state. 93% – Americans who will eat pizza at least once in the next 30 days.
Pizza nutrition fact — a slice of cheese pizza gives you 45.8% of the selenium, 39.8% of the riboflavin, 31.1% of the phosphorus, 29.2% of the thiamin, 24% of the folate, 23.8% of the vitamin B-12, 21.1% of the niacin, 14% of the calcium, 12.8% of the zinc, and 12.2% of iron recommended by the Institute of Medicine’s Food and Nutrition board.
Pizza nutrition fact — eating pizza regularly reduces the risk of esophageal cancer by 59%, reduces the risk of oral cavity and pharyngeal cancer by 34%, and reduces the risk of colon cancer by 25% — the lycopene in the tomato sauce is an antioxidant that can lower the risk of cancer, when pizza is a part of a healthy diet and lifestyle.
Similar holidays and events, festivals and interesting facts
National Macadamia Nut Day on September 4 (United States);
Finnish Food Day on September 4 (Finländska matens dag);
National Wine Day in Chile on September 4
National Coffee Ice Cream Day on September 6 (United States);
National Coffee Day in Germany on September 7 (Celebrated on the first Saturday in September);
National Beer Lover's Day, National Acorn Squash Day and National Salami Day in United States on September 7
National Date-Nut Bread Day in United States on September 8