McDonald's had grown into an increasingly popular fast-food establishment. The first drive-thru was introduced in 1975.

After the brothers who founded McDonald's faced trials and tribulations, it appears that sticktoitiveness is a prerequisite for anyone else looking to be in charge of those golden arches ...

Though the restaurant’s concept began with brothers Maurice and Richard McDonald in southern California, many of the company’s innovations have happened right here in Chicago. Here’s a look ...