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 (15[1])iconic statues of the (15[1])Buddha. (15[1])The (-5[1])Milindapañha (-5[1])records Nagasena converting a ruler of this (15[1]-5[1])ethnicity to Buddhism. Dynasties of this ethnicity spread Buddhism in (*) Gandhāra and (10[3])Bactria. An (10[1])empire of (10[1])this ethnicity ceded its easternmost provinces to Chandragupta (10[1]-5[1])Maurya in return for the (-5[1])war (10[1])elephants used at the Battle of (-5[1])Ipsus. A conqueror of this (10[1]-5[1])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 (10[2])Great. (10[3]0[2])■END■