The period of modernity is characterised socially by industrialisation as well as the division of labour and philosophically by "the lack of certainty, and also the realization that certainty can by no means be established, after and for all". Runaway populace development — and the environmental crisis it's helped deliver https://thetopdirectory.com/listings12676026/new-step-by-step-map-for-culture-of-the-united-states