The Bulgarian ethnomusicologist- Béla Bartók determined that the Hungarian folk music used in the "classical" music of Debussy and Stravinsky were actually of Russian origin.
Bartók writes: “We must attribute these, with doubtless certainty, to the influence of some Eastern European—probably Russian—folk music. Similar efforts can be found in the works of Igor Stravinsky".
Bartók's groundbreaking work in the field of music along with his deep scientific research paved for new developments in the field of music.
The cave paintings are found mostly in mountains in the present-day Mexican state of Guerrero. The Olmecs created mainly sculptures out of basalt. The Mayans made sculptures out of stucco and created pottery out of clay.
