It rapidly increased due to an increase in immigration
Well that depends on who thoight the activities were positive
Gandhi took the religious principle of ahimsa which means doing no harm, common to Buddhism, Hinduism and Jainism and turned it into a non-violent tool for mass action. He used it to fight not only colonial rule but social evils such as racial discrimination and untouchability as well.
Las primeras áreas industriales aparecieron en Gran Bretaña a finales del siglo XVIII, extendiéndose a Bélgica y Francia a principios del siglo XIX y a Alemania y a Estados Unidos a mediados de siglo, a Japón a partir de 1868 y a Rusia, Italia y España a finales de siglo.