The Jewish community began to decline financially in the 19th century.

The main legitimate activity had always been fishing, but this started to decline in the late 19th century.

The slave trade declined in the 19th century, the major commercial center.

The market declined in the 18th century and has since been revived.

However, both mining and population declined in the late 19th century.

The crime rate has continued to decline in the twenty-first century.

Rome's population declined after its peak in the 2nd century.

The use of open fields began to decline in the 15th century.

They declined in the late 19th century when broader education came into vogue.

The population declined in the 20th century to a low of 472 people in 1990.