Chemical engineering developed in the late nineteenth century. Gershwin was influenced by French composers of the early twentieth century. Jews started arriving in the early 19th century. They are a set of townhouses built in the late 19th century. Western intrusions were on the increase in the early 19th century. Cannabis was criminalized in various countries beginning in the 19th century. Bengal has a long history of feminist activism dating back to the 19th century. Both firms had histories dating back to the 19th century. Three fell during the late 18th century. Around the start of the 20th century. This dated from the late 18th century. Anatolian studies expanded in the late 20th century. This led to further innovations like installations in the late 20th century. It expanded beyond its ramparts in the later 17th century. Astronomers adopted a value of 0.25 arcseconds for much of the 19th century.