2. Dr.Stamen Grigorov 1878 – 1945 invented the Bacterium bulgaricum Grigoroff He used this bacteria to develop The Bulgarian yoghurt. He is the first Bulgarian scientist in the world who made use of different penicillin funguses to cure the illnesses of tuberculosis and cholera during the World War I He used this bacteria to develop The Bulgarian yoghurt. He is the first Bulgarian scientist in the world who made use of different penicillin funguses to cure the illnesses of tuberculosis and cholera during the World War I

3. John Atanasov 1903 – 1995 invented the prototype of the first electronic calculation machine used for the creating of the modern computer

4. Ivan Mitev discovered the sixth tone in the heart (1924-2006) That was a revolutionary discovery in Bulgarian and international development of the medicine. That was a revolutionary discovery in Bulgarian and international development of the medicine.

5. Petar Petrov 1919- 2003 invented the prototype of the digital electronic watch Petar Petrov was a Bulgarian Petar Petrov was a Bulgarian inventor, engineer, NASA scientist and adventurer. His watch was marketed by the Hamilton Watch the Hamilton Watch Company as the Pulsar, it sold for $2100 in 1971.

6. Dimitar Saselov 1980- In 2003 the Bulgarian astronomer and his team discover the most distant planet.It is 5000 light years away from the Sun. It`s located in the constellation of the Sagittarius and is called OGLE-TR-56b

7. Asen Yordanov 1896-1967 Bulgarian inventor, engineer and aviator Bulgarian inventor, engineer and aviator He constructed the first Bulgarian plane.He is also one of the creators of the air bag.

8. Ivan Nochev 1916-1991 constructed the lunar module used during the first landing on the Moon The invention of the Bulgarian was called Eagle.It helped the Americans for their first landing on the Moon in the spacecraft Apollo 11. When Ivan Nochev died on 13 th of March 1991 three American presidents, Carter, Rеagen, and Bush were at his funeral.

9. Dimitar Paskov 1914 - 1986 created the medicine Nivaline T he chemist who extracted Nivaline for first time from the bulbs of the plant snowdrop somewhere in 1959. An ill girl drank water from a vase with snowdrops. Not after long she was cured. She in fact helped Mr Paskov to extract the medicine.

10. The Bulgar calendar was a calendar system used by the old Bulgarians to measure the duration of the year. It was acknowledged by UNESKO as the most accurate ancient calendar