In just a few weeks, we’ll celebrate the 250th anniversary of the United States of America. Most will attend Fourth of July parades, eat hot dogs at barbecues and read up on American history. Author and professor Mark A. Johnson will be at The Bookworm in Edwards to talk about a unique slice of American social and cultural history: bacon. On June 24 at 6 p.m., learn from Johnson how bacon has overcome centuries of religious prohibition, cultural…