The distance of the first modern Olympic Marathon in 1896 was 40 km (24 miles 85 yards), so why, at the 1908 London Olympic Games, was it run over its now-standard distance of 42.195 km (26 miles 385 yards)?
Which of these is a natural area of roughly 16 square km (6.2 squ miles), which is 5 km (3.1 miles) west of Tuktoyaktuk, Canada, in a coastal region of the Arctic Ocean, which contains approximately 1,350 Arctic ice dome hills?
Where did a magnitude 7.7 earthquake, 12.8 miles (20.6 km) deep occur at 9:42 p.m. local time on 25 October 2010, which generated a "significant tsunami" and resulted in at least 113 people reported dead, and over 160 missing?
