The First Zionist Congress was held in Basel in 1897, and 15 out of a total of 22 congresses were held in Switzerland. Before the establishment of the State of Israel, Switzerland maintained a consulate in Jerusalem and a consular agency in Tel Aviv. It recognized the new state in 1949 and opened a consulate in Tel Aviv, which was upgraded to an embassy in 1958. The Swiss community in Israel is the largest in the Asian region, totalling around 12,000 persons.