In the mid-19th century, Jewish businessmen from Cape Town named the De Pass brothers became the first Jews in what is now Namibia when they established a trading post on the Nawaqualand Coast. The De Pass brothers began the Pomona Copper Company in Pomona, Namibia in 1861. After Namibia became a German colony in the late 19th century, more Jews came to Namibia for business, et cetera. However, under German rule, only about 100 Jews lived in Namibia, most of whom lived in Swakopmund. After the German defeat in World War I, the newly created League of Nations gave South Africa a mandate over Namibia. The Jewish population of Namibia (which had close relations with the Jews in South Africa) began increasing after this point, and there were 400 to 500 Jews living in Namibia (mostly in Windhoek) in 1965 (however, Jews were still less than one percent of the total White population in Namibia during this time).