A ruler of this ethnicity established a major Buddhist center at his capital of Sagala. These people were known as Yonas or Yavanas in ancient Pali and (15[1])Sanskrit (15[2])sources. Converts of this ethnicity made the earliest iconic statues of the Buddha. The Milindapañha (-5[1])records Nagasena converting a ruler of this ethnicity to Buddhism. Dynasties of this ethnicity spread Buddhism in (*) Gandhāra and (10[2])Bactria. An empire of this ethnicity ceded its easternmost provinces to Chandragupta Maurya in return for the war elephants used at the Battle of Ipsus. A conqueror of this ethnicity won the Battle of the Hydaspes against King Porus. For 10 points, name this ethnicity of Seleucus and other (10[1])rulers who succeeded Alexander the Great. ■END■