How do they build super tall buildings?

What inventions allowed buildings to get taller and taller? What were some of the first skyscrapers ever built? Are buildings really built to sway in the wind? For free home activities sign-up at www.WhoSmarted.com See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.