The line chart illustrates changes in the average height of men in four countries—Denmark, the US, the UK, and France—between 1775 and 1975.
Overall, men in all four nations became taller over the two-century period. The US recorded the greatest average height for much of the timeline, although it was eventually surpassed by Denmark. In contrast, France consistently had the shortest male population throughout.
In 1775, American men were the tallest, with an average height of approximately 169 cm, followed closely by their counterparts in the UK (167 cm) and Denmark (166 cm). By 1825, the US had seen a sharp increase to around 177.5 cm, maintaining a clear lead over the UK (about 172.5 cm), while Denmark lagged behind at roughly 166.5 cm. However, over the subsequent 50 years, average heights in both the US and the UK declined, converging with Denmark at approximately 170 cm.
From that point onward, Denmark experienced the most significant and sustained growth. By 1975, it had overtaken both the US and the UK, reaching an average of about 184 cm—the highest among the four countries. Meanwhile, the US and the UK showed more modest increases, remaining below 180 cm on average.
France, by contrast, followed a different trajectory. Starting at just 162.5 cm in 1775, French men were considerably shorter than those in the other countries. Although their average height rose gradually over time, it reached only about 167.5 cm by 1975, leaving France still significantly behind the others.
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