Which 6 of these historical events happened in 1968?

Tet offensive, Rfk Assassination, bay of pigs, jungle terrain, us troops, vietcong, vietnamization, election of nixon, project head start, blockade, the french, LBJ withdraws, MLK Assassination, medicad/medicare, ho chi minh trail, hotline, my lai massacre , kent state shootings, threat of nuclear conflict, economic opportunity act, and the invasion of Cambodia.