Until last year, I had never seen the Pacific Ocean. O adjective
O adverb
O conjunction
O interjection
noun
o preposition
O
pronoun
verb

Conjunction because it’s telling you when or since when

The answer would be interjection

Atahualpaemperor of the inca empire who rose to the throne after winning a civil war between him and his brother.  -he refused to become a spanish vassal or christian.-francisco pizarro kidnapped him and demanded a huge ransom.  -pizarro's secretary described him as "a man of thirty years, good-looking and poised, somewhat stout, with a wide, handsome, and ferocious face, and the eyes flaming with blood."-after the ransom was paid, atahualpa was killed by pizarro