It has emerged as a separate field of study in the late twentieth century.

Care homes for the aged emerged in the 19th century.

The nation began to emerge in the late 18th century as the leading form of government and social organization.

Social democracy is a political ideology that emerged in the late 19th and early 20th century.

Media stereotypes of women first emerged in the early 20th century.

These emerged in the 19th century as a symbol of the holder's power.

The modern road network emerged in the 19th and 20th century.

It is believed that the sign language emerged in the late 19th or early 20th century.

The focus on collective terms for groups of animals emerges in the later 15th century.

They slept longer than planned and emerged late in the 20th century.