The event at a convention center in Cuba's capital looks like a lot of trade fairs: Music blares as visitors stroll between colorful booths displaying a wild variety of products: furniture or clothing, glassware or recycled paper, chocolates or cleaning products.
But it's a commercial milestone for Cuba: The companies showing off their wares are largely formal, private companies that were legalized only about six months ago — more than a half century after the Communist government banned nearly all private enterprise.
