ultramarathon

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airplane in flight (plane, aircraft, flying)

7 Puzzling Plane Disappearances

Nelson Mandela, undated photo.

15 Nelson Mandela Quotes

Dancers at a Cinco de Mayo festival at the Mission District, San Francisco, California. (Photo dated 2019.) holidays

Is Cinco de Mayo Mexico's Independence Day?

Scolex (head) of the tapeworm Taenia solium. The hooks of the scolex enable the tapeworm to attach to the intestinal wall.

Uninvited Guests: The 7 Worst Parasitic Worms

Lake Mead (the impounded Colorado River) at the Hoover Dam. The light-coloured band of rock above the shoreline shows the decrease in water level in the first few years of the 21st century.

6 Lakes That Are Drying Up

An ancient egyptian hieroglyphic painted carving showing the falcon headed god Horus seated on a throne and holding a golden fly whisk. Before him are the Pharoah Seti and the goddess Isis. Interior wall of the temple to Osiris at Abydos, Egypt.

11 Egyptian Gods and Goddesses

Statue of Nostradamus

Nostradamus and His Prophecies

ultramarathon

race

Learn about this topic in these articles:

development of marathons

In marathon
Ultramarathons, which are neither Olympic nor World Athletics events, are longer races based on a specific distance or an allotted time period for competition, such as a 12-hour race.
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