スカル・アンド・ボーンズ
Skull and Bones selects new members among students every spring as part of Yale University's "Tap Day", and has done so since 1879. Since the society's inclusion of women in the early 1990s, Skull and Bones selects fifteen men and women of the junior class to join the society. Skull and Bones "taps" those that it views as campus leaders and other notable figures for its membership.