Many interesting events and surprises about the world over 100 years ago surprised many people.
Giant African kangaroos, trained to detect mines, are contributing to the fight against tuberculosis in Tanzania and Mozambique.
St. Mary's Chapel in Scotland used to be a place of detention and trial of those accused of witchcraft in the 15th century.
Nine locations were forgotten by French photographer Sylvain Margaine, taking pictures and photo books recently released by Jonglez Publishing.
British scientists are studying to find out