What dancing styles were developed in the 20th Century?

Question:All forms of Modern Dance, Graham, Duncan, and then Balanchine ballet style, as well as Disco, Hip-hop, Break-dancing, punk, and the others above my answer.

Best Answer - Chosen by Asker: All forms of Modern Dance, Graham, Duncan, and then Balanchine ballet style, as well as Disco, Hip-hop, Break-dancing, punk, and the others above my answer.

Charleston.Jive.Twist.

line dancing?

Charlston, Cha-cah,Jive, twist, rock n roll, hippy hippy shake, mashed potato,disco, hip hop, head banging, and not to forget the put-ur-hand-bags-in-the-middle-of-the-fl...

Charleston, Foxtrot, Quickstep, Tango, Boogie woogie, Rock and roll, Twist, The Creep,Cha-Cha, .There were more in the 50s but only lasted for a short time.

I would mostly say ballroom and swing.
swing was mostly in the times of the second world war.