Over the last 150 years the average height of people in industrialized nations increased by 10 cm (4 in).

In the 19th century, American men were the tallest in the world, averaging 1,71 meters (5’6″). Today, the average height for American men is 1,763 m (5 feet 9-and-half inches), compared to 1,815 m (5’10?) for Swedes, and 1,843 m (5’11?) for the Dutch, the tallest Caucasians.

Over the last 150 years the average height of people in industrialized nations increased by 10 cm (4 in).