There’s a very American celebration going on in many parts of the country — the annual state fair. One of the largest, in Iowa, starts today and will draw 1 million people by its close in 10 days. A total of 15 states will stage their fairs this month. Those who attend will experience the special blend of eating, entertainment and entrepreneurship that make up a state fair. These events date from the early 19th century and celebrate the annual harvest and each state’s contribution to the nation’s agricultural progress. In 1920, there were about 6.5 million farms in the U.S. Today, there are just over 2 million — feeding a population approaching three times that of 1920. You can find more facts about America from the U.S. Census Bureau, online at <www.census.gov>.