Hadrons are a class of subatomic particles that include baryons and mesons, and they were not discovered by a single individual but rather identified over time as part of particle physics. Key properties of hadrons include their composition of quarks, the strong force binding them, and their classification based on baryon number. Interesting facts about hadrons include their role in forming atomic nuclei and their involvement in high-energy particle collisions. The study of hadrons has significantly advanced through experiments conducted in particle accelerators. Understanding hadrons is crucial for insights into the fundamental forces of nature.