It is in vain to say human beings ought to be satisfied with tranquillity: they must have action; and they will make it if they cannot find it. Millions are condemned to a stiller doom than mine, and millions are in silent revolt against their lot. Nobody knows how many rebellions besides political rebellions ferment in the masses of life which people earth. (Jane Eyre)
I can’t find any relevant meaning in the dictionaries for earth. Is it a verb? If it is, what does it mean? If not, what does 'which people earth' mean?