Delta Air Lines kompaniyasi 1924 yil 30 mayda Collett E. Woolman tomonidan tashkil etilgan bo'lib, qishloq xo'jaligi aviakompaniyasi sifatida boshlangan bo'lib, boshida u eng hashamatli aviakompaniya deb hisoblanmagan.
spam fails_task lang_mismatch pii not_appropriate hate_speech sexual_content quality toxicity humor helpfulness creativity violence