in Greek mythology there were 9 Muses: Calliope, Clio, Euterpe, Erato, Melpomene, Polyhymnia, Terpsichore, Thalia, and Urania

"'01" is an album by the Slovak singer Richard Müller. He wrote most of the lyrics and, due to the death of composer Jaro Filip, Müller also composed half of the music

Moon Zero Two is a 1969 crime sci-fi film about a group of criminals intent on hijacking a small asteroid made of sapphire

the bandurria is a Spanish folk instrument similar to the mandolin with 12 strings arranged in 6 courses

"Zero K: a novel" is a book published in 2016 by the renowned author Don DeLillo

in golf slang the "19th hole" is actually the clubhouse bar

the "Magic 8 Ball", a toy used for seeking advice, can give 20 distinct answers (5 negative, 10 positive, 5 non-committal)

the Israeli national legislature, The Knesset, has 120 seats

Zero Hour is an American conspiracy television series that aired on ABC