Bačka (Serbian: Bačka or Бачка (pronounced [bâːtʃkaː]), Hungarian: Bácska (pronounced [ˈbaːtʃkɒ]), Croatian: Bačka, Bunjevac: Bačka, Slovak: Báčka, Rusyn: Бачка, German: Batschka) is a geographical area within the Pannonian plain bordered by the river Danube to the west and south, and by the river Tisza to the east of which confluence is located near Titel. It is divided between Serbia and Hungary, however, there are small uninhabited pockets of the area on the left bank of the Danube which are de jure parts of Croatia according to the Badinter Commission. Nonetheless, the disputed areas have been under de facto Serbian control since 1991 (see disputes of Croatia and Serbia). Most of the area is located within the Vojvodina region in Serbia. Novi Sad, the capital of Vojvodina, lies on the border between Bačka and Syrmia, on the banks of the river Danube. Smaller northern part of the geographical area is located within Bács-Kiskun County, in Hungary.

Bačka is a typical Slavic name form, created from "Bač" (name of historical town in Bačka) and sufix "ka" (which designating "the land that belong to Bač"). There are many other similar name forms used in Serbian and other Slavic languages, for example Šajkaška, Srpska, Hrvatska (Croatia), Timočka Krajina, Bugarska (Bulgaria), Polska (Poland), etc. The name of "Bač" (Bács) town itself is of uncertain origin and its existence was recorded among Vlachs, Slavs and Hungarians in the Middle Ages. The origin of the name could be Paleo-Balkanic,Romanian, Slavic, or Old Turkic.

Kosta Abrašević (Serbian Cyrillic: Коста Абрашевић, May 29, 1879 – January 20, 1898) was a Serbian poet.

Kosta was born in Ohrid, on May 29, 1879, to a merchant family. His father was Serb and his mother was Greek.

After finishing three years in a Greek school at Ohrid, he continues his schooling in the Šabac gymnazium, where he started using his fathers nickname "Abraš" as a surname. Early on he comes in contact with Socialist ideas, and establishes a political-writer group in Šabac, which releases the magazines "Omirov venac" and "Grbonja". In his poetics, socialist and social ideas are prevalent. He translated German Socialist poets, like Hans Lever, Obenhald and others. His original poems are found in working- and socialistical magazines after his death, and his collection, which had been released many times, was printed by high-schooled group in 1903. His works are translated into Russian, Hungarian, Albanian and Romanian, also some of his works are interpreted by composers such as S. Anđelić and M. Živković. He died in Šabac on January 20, 1898, only 19 years old.

Vuk Stefanović Karadžić (pronounced [ʋûːk stefǎːnoʋitɕ kâradʒitɕ], Serbian: Вук Стефановић Караџић; November 7, 1787 – February 7, 1864) was a Serbian philologist and linguist, the major reformer of the Serbian language, and deserves, perhaps, for his collections of songs, fairy tales, and riddles to be called the father of the study of Serbian folklore. He was the author of the first Serbian dictionary. Among his colleagues in linguistics were Jernej Kopitar and Đuro Daničić, while in folklore studies, Vuk Vrčević (1811–82), a friend of writer Stjepan Mitrov Ljubiša, and writer Đorđe Rajković.

He was well known abroad and familiar to such giants as Jacob Grimm, Goethe and historian Leopold von Ranke. Vuk was the primary source for Ranke's Serbische Revoluzion ("Serbian Revolution"), written in 1829.

Karadžić was born to parents Stefan and Jegda (née 'Zrnić') in the village of Tršić, near Loznica in Serbia, then in the Ottoman Empire. His family settled from Drobnjaci, and his mother was born in Ozrinići, Nikšić (modern Montenegro). His family had a low infant survival rate, thus he was named Vuk ('wolf') so that witches and evil spirits would not hurt him (Vuk was traditionally given to strengthen the bearer).