Answer: Leonardo da Vinci In addition to being Leonardo da Vinci's most famous work, the Mona Lisa is also one of the most precious works of art of all time.
Answer: Bill Clinton During President Bill Clinton's administration, Al Gore served as the Vice President of the United States. He held that post from 1993 to 2001.
Answer: Michelle Obama After her husband Barack Obama became the 44th U.S. President in 2009, Michelle Obama became the first African-American to become First Lady of the United States. She was First Lady from 2009 to 2017.
Answer: Greece The Olympic Games began in Greece. As far back as 776 BC, ancient Olympic Games were being staged in the Greek city of Olympia. In 1896, Athens (the largest city in Greece) hosted the first modern-day Olympic Games.