What Was The Most Popular Burger Of Each Decade?

Burgers have been a staple in lunch and dinners since their inception around the turn of the 20th century. Since that time, burgers have evolved, morphed and grown over the decades to become one of the most popular and most competitive foods in the country, with new styles and trends popping up regularly to transform the entire industry. But what were all those decade-defining burgers? The ones everyone and their brother couldn’t wait to order?