The Hungarians introduced many things to the world, which people still use today. Following inventions aren't related to individuals, but to all Hungarians. Hungarian inventions are:
Before the Hungarians, buttons were unknown in Europe.
The Hungarians introduced its use to the rest of Europe.
BREAD MADE WITH LEAVEN
A kind of pasta. The Hungarian soldiers of the 9th and 10th century carried it with them in a leather bag. For a speedily prepared first class meal they cooked it, along with meat powder, also carried in leather bags. This was the secret to their fast movement, and many military victories.
Supposedly, soap was also a Hungarian invention and its name in many languages was derived from the Hungarian szappan: soap, Seife, savon, jabon, etc.
was discovered in Hungary (Encyclopaedia Britannica, 1961)
Every coach, passenger car and freight car in trains is equipped with it. The first vehicle equipped with a steel spring was created in Kocs, a village in Komárom County. This is where the Hungarian name KOCSI comes from, which was taken over by other languages: Kutsche (German), coach (English), coche (French and Spanish), etc.
Source: Magyar Folklórközpont