Any Jew or group of Jews can build a synagogue. Synagogues have been constructed by ancient Jewish kings, by wealthy patrons, as part of a wide range of human institutions including secular educational institutions, governments, and hotels, by the entire community of Jews living in a particular place, or by sub-groups of Jews arrayed according to occupation, ethnicity (i.e. the Sephardic, Polish or Persian Jews of a town), style of religious observance (i.e., a Reform or an Orthodox synagogue), or by the followers of a particular rabbi.