Rise of the Omega
Human colonists came to Alderaan before the founding of the Republic and discovered a verdant world abandoned by an insect species, the Killiks. A founding member of the Republic, Alderaan became a symbol of human culture at its best, with cities built to coexist with nature and renowned universities. People across the galaxy enjoyed Alderaanian cuisine, spiced wines, and exhibitions of Alderaanian dance, theater, music, and poetry.
Three useful Alderaanian animal species – thrantas, grazers, and nerfs – also spread throughout the galaxy.
Alderaan formally adopted pacifism after the horrors of the Clone Wars, ridding itself of all major weaponry.