The success of the Zeiss plant brought numerous highly qualified workers to the city, and the population rose sharply by 150% in the time from 1870 to the turn of the century, to roughly 25 000.
Guusha geedka Zeiss keenay badan oo shaqaalaha aqoonta sare in magaalada, iyo dadka soo maratay kacay 150% wakhtiga ka 1870 si ay u soo noqdo qarnigii, si qallafsan 25 000.