In 1960, the McDonald's advertising campaign "Look for the Golden Arches" gave sales a big boost. Kroc believed that advertising was an investment that would in the end come back many times over, and advertising has always played a key role in the development of the McDonald's Corporation. Indeed, McDonald's ads have been some of the most identifiable over the years. In 1962, McDonald's introduced its now world-famous Golden Arches logo. A year later, the company sold its millionth hamburger and introduced Ronald McDonald, a red-haired clown designed to appeal to children.
In the early 1960s, McDonald's really began to take off. The growth in U.S. automobile use that came with suburbanization contributed heavily to McDonald's success. In 1961 Kroc bought out the McDonald brothers for $2.7 million, aiming at making McDonald's the number one fast-food chain in the country.
In 1965, McDonald's Corporation went pub