RENO, Nev. — Nevada tourism officials are planning a three-day festival in Reno next fall to celebrate and promote the city as the birthplace of what became modern blue jeans. Reno tailor Jacob Davis created riveted denim jeans in 1871 in a downtown shop. Two years later, he and Levi Strauss & Co. patented the pants with the rivets to the corners and pockets that made them the sturdy favorites of miners, loggers and cowboys who helped tame the West. The “Blue Genes Jam” next Oct. 2-4 will celebrate the iconic trousers’ impact on popular culture with concerts, fashion shows,...