After the fall of communism in 1989, Poland joined NATO in 1999 and which group of nations on May 1, 2004?

After Queen Maria Theresa's death in 1683, which French king secretly married Madame de Maintenon? After President Hindenburg's death in 1934, Hitler assumed which title, meaning "leader"? After cathedral building declined in the 1600s, which organization of stoneworkers began admitting members who weren't… New Zealand's "laughing" what went extinct in the early 1900s, in part because it nested on the ground? After "The Flying Nun" was grounded in 1970, which actress starred in the sitcom "The Girl with Something Extra"? After the invasion of Poland, Great Britain and which other nation declared war on Germany on September 3, 1939? After the Khmer Rouge took power in 1975, which capital was forcibly emptied of nearly all its residents? After Elvis Presley's death in 1977, which "Okie from Muskogee" singer had a hit with "From Graceland to the Promised L…