Short answers, pulled from the story.
The name "Serb" traces to a Proto-Slavic root meaning "to sip" or "to breast-feed," cognate with Lithuanian suřbti and Polish s(i)erbać. The ethnonym is rooted in the concept of "brotherhood in milk," a bond that extended beyond blood relatives to allies and companions, carrying the secondary meaning of "those who belong to the same family."
The Serbian Revolution (1804-1817) was the first successful national uprising against Ottoman rule in Europe, unfolding in two phases led by Karađorđe Petrović and Miloš Obrenović. It produced the Serbian Civil Code of 1844, making Serbia the fourth modern European country to have a codified legal system, after France, Austria, and the Netherlands. Full international recognition of Serbian independence came at the Congress of Berlin in 1878.
Slava is the Serbian Orthodox tradition of venerating the family's patron saint on the feast day. Every family has its own patron saint, with the most common being Saint Nicholas (the 19th of December), Saint George (the 6th of May), and Saint John the Baptist (the 20th of January). On the feast day, the family home is open to all who know the date, including relatives, friends, neighbors, and acquaintances.
During the Ottoman centuries, the Serbian Orthodox Church was the only Serb institution the empire permitted to continue. Through its monasteries and clergy, the church preserved the Serbian language, literacy, written history, and national consciousness when all other forms of statehood and education had been extinguished. Around 8 million people worldwide adhere to the church today.
Novak Djokovic holds 101 titles, including a record 24 Grand Slam majors, a record 40 Masters titles, and a record seven year-end championships. He has been ranked world No. 1 for a record 428 weeks and finished as year-end No. 1 a record eight times, in addition to winning an Olympic gold medal.
Nikola Tesla, widely regarded as one of the greatest inventors in history, transformed electrical systems through his work on alternating current. Milutin Milanković formulated the theory of long-term climate change driven by variations in Earth's orbit and axis, now known as Milankovitch cycles. Mileva Marić contributed significantly to the early development of the theory of special relativity and other foundational areas of modern physics.