TIL that the Madagascar Sign Language is derived from the Norwegian Sign Language, since the education for deaf in the country was established by Norwegian missionaries.(repository.tufs.ac.jp)
A launch loop is a proposed system to launch objects into space without rockets. It consists of a moving cable-like system situated inside a sheath attached to the Earth at two ends and suspended above the atmosphere in the middle. It would be around 2000 km long and reach 80 km up.(en.wikipedia.org)
TIL that the rarest naturally occuring element is Astatine (atomic number 85). It is so rare because it has a half-life of 8.1 hours. Less than one ounce (28 grams) exists in the Earth's crust.(en.wikipedia.org)
TIL that there was an Indian con-man called Natwarlal who repeatedly "sold" Taj Mahal, the Red Fort in Delhi, the Indian presidential palace and parliament house.(en.wikipedia.org)
TIL that two airplanes collided in Switzerland in 2002 due to bad air traffic control. A Russian man who lost his family in the accident murdered the air traffic controller who handled the traffic that night. After his release he became deputy minister of construction in North Ossetia-Alania.(en.wikipedia.org)
TIL that the library Biblioteca_Joanina in Coimbra, Portugal is home to a swarm of bats that feed on book-eating insects.(en.wikipedia.org)
An excavator climbing a tower(i.imgur.com)
TIL that Francisco Macías Nguema, dictator of Equatorial Guinea 1968-1979, gave himself the title "Unique Miracle", changed the national motto to "There is no other God than Macías Nguema", banned western medicine and had 150 opponents executed on Christmas Eve by soldiers dressed as Santa Claus.(en.wikipedia.org)
A French vision of Europe after WWI, 1916(i.imgur.com)
Massive decline in migratory freshwater fish populations could threaten livelihoods of millions, warns new report.(worldfishmigrationfoundation.com)
TIL that in 1968, Liechtenstein held a referendum on women's suffrage where both men and women were allowed to vote. Despite this, the No-side won with 56.3% and 49.5% of the women voting against voting rights for women. Women's suffrage would not be introduced until 1984.(en.wikipedia.org)
TIL that the Paraguayan war 1864-1870 led to the death of up to 69% of the population in Paraguay. After the war there were only 28,746 adult men left in the country.(en.wikipedia.org)
TIL that the last sword duel in France took place in 1967, between the mayor of Marseille and the presidential candidate of the Socialist Party.(rarehistoricalphotos.com)
TIL that the first rocket launched by the Indian space program in 1963 was transported to the launch site by bicycle. The space center from which the launch was performed was set up in a church.(indiatoday.in)