[3][4] Also known for his widely eclectic interests outside of archaeology, his most significant accomplishment was discovery of the Neolithic site of Vinča culture in 1905 and subsequent excavation, which began in 1908.

3 September] 1869 in Veliko Gradište, eastern Serbia,[4][5][6] to Persa (née Stojadinović), a housewife, and Milojko Vasić, a tailor.

[2][4][9] Obtaining a scholarship from the Serbian government, Vasić went to Germany to study philology, art history and classical archaeology.

Mentored by one of the greatest names of classical archaeology of the day, professor Adolf Furtwängler, he received a PhD in 1899 with the thesis Torch in the culture and arts of the Greeks, published in Belgrade in 1900.

When Valtrović retired in 1906, Vasić replaced him as director of the National Museum,[10] which allowed narrow cooperation between two institutions, both dealing with archaeology.

He retired in 1939, after turning 70, but continued to teach honorary until 23 March 1941 when he was removed from the University and Veselin Čajkanović took over Archaeological seminar.

After finishing his studies in Germany he excavated prehistoric settlements of Jablanica, near Međulužje (1900), Čaršija, near Ripanj (1904) and Mali Drum, near Popović (also in 1904), all south-east of Belgrade.

Based on those articles, he compiled a massive study Contributions to the solving Trojan problems, which was published in the Serbian Royal Academy's journal Glas SKA (1906, LXX).

[3][4][11] He continued with excavations of the prehistoric, late Neolithic settlements throughout Serbia, including Žuto Brdo in 1906, near Veliko Gradište, and Gradac in 1909, near Zlokućane.

[7] Journals in which he published his works include Austrian Jahreshefte des Österreichischen Archäologischen Instituts, German Römische Mitteilungen, Archiv für Anthropologie, Prähistorische Zeitschrift and Jahrbuch des deutschen Archäologischen Instituts, French Revue Archeologique and British The Annual of the British School at Athens.

Vasić believed that success of the culture can be accredited to the vast mines of cinnabar, or mercury sulfide, at the nearby Avala mountain, which settlers of Vinča melted and used in metallurgy.

Childe also supported Vasić's efforts to publish the findings in his magnum opus, the monumental monograph Prehistoric Vinča volumes I-IV (1932–36).

Pinnacle of his efforts in this direction was the realization of his idea of the First Yugoslav Exhibition in Belgrade, 1904, where artists from the four Slavic nations (Serbs, Croats, Slovenes and Bulgarians) presented their works.

[4] During World War I and shortly after it, basically unable to excavate, Vasić studied architectural monuments and sculptures from the Middle Ages,[9] producing several smaller published works and two major studies, Architecture and sculpture in Dalmatia from the beginning of the IX to the beginning of the XV century (1922) and Žiča and Lazarica (1928), which are still being used as textbooks in the national art history.

[11] Other important works include Pincum or Veliko Gradište (1894), Viminacium Colony (1895), Neolithic site Jablanica near Međulužje in Serbia (1901), Žuto Brdo.