Billiard fever, in addition to in Chicago, spread all over the West in the 19th century. The game has its origin in the Middle Ages, but in the previous centuries the activity of the elites was predominantly. As the pool rooms were opened there and here, the game spread to all the citizens, causing great harm to the elephants.
For the pool, for the balls to function well, they must be manufactured with materials of determined and uniform density, being the elephant dental pouch suitable for this purpose. Considering that 3 or 4 balls could be extracted from a tooth and that 16 balls are used in the pool, 2 or 3 elephants should be killed to supply a single pool table. The flowering of the pool caused the elephants to decline.
Without ecological awareness, this was an economic disaster for those engaged in the billiards business. But the solution was already invented, although it still didn't have a clear use: plastic. It was a much cheaper and more versatile material, and in the short term, at least more environmentally friendly to elephants.
In 1869 the manufacturer of billiard material Phella & Collender made a call and offered an economic prize in search of a material that substituted ivory. The young inventor John Wesley Hyatt (1837-1920) responded to the call. The English Alexander Parkes (1813-1890) was based on the adaptive nitrocellulose developed years ago to obtain the celluloid base. The ball manufacturer patented the first plastic balls that same year, and the following year, in 1870, the Hyatt itself patented celluloid, the first industrial plastic.
So in the newborn, plastic saved some elephants, although as they grew up, elephants and other living creatures were in danger.
Bilbo, 1954. Hiriko Alfer eta Gaizkileen Auzitegia homosexualen aurka jazartzen hasi zen, erregimen frankistak izen bereko legea (Ley de Vagos y Maleantes, 1933) espresuki horretarako egokitu ondoren. Frankismoak homosexualen aurka egiten zuen lehenago ere, eta 1970ean legea... [+]
Japonia, XV. mendea. Espioitzan eta hilketa ezkutuetan espezializatutako eliteko talde militarra sortu zen. Edo horixe uste du behintzat Stephen Turnbull historialari britainiarrak. Beste aditu batzuen ustez, askoz lehenago sortu ziren ninjak, duela 2.300-2.500 urte inguru. Eta... [+]
Eskultura grekoerromatarrek bere garaian zuten itxurak ez du zerikusirik gaurkoarekin. Erabilitako materiala ez zuten bistan uzten. Orain badakigu kolore biziz margotzen zituztela eta jantziak eta apaingarriak ere eransten zizkietela. Bada, Cecilie Brøns Harvard... [+]
Chão de Lamas-eko zilarrezko objektu sorta 1913an topatu zuten Coimbran (Portugal). Objektu horien artean zeltiar jatorriko zilarrezko bi ilargi zeuden. Bi ilargiak apaingarri hutsak zirela uste izan dute orain arte. Baina, berriki, adituek ilargietan egin zituzten motibo... [+]
Hertfordshire (Ingalaterra), 1543. Henrike VIII.a erregearen eta Ana Bolenaren alaba Elisabet hil omen zen Hatfield jauregian, 10 urte besterik ez zituela, sukarrak jota hainbat aste eman ondoren. Kat Ashley eta Thomas Parry zaintzaileek, izututa, irtenbide bitxia topatu omen... [+]
Luxorren, Erregeen Haranetik gertu, hilobi garrantzitsu baten sarrera eta pasabide nagusia aurkitu zituzten 2022an. Orain, alabastrozko objektu batean Tutmosis II.aren kartutxoa topatu dute (irudian). Horrek esan nahi du hilobi hori XVIII. dinastiako faraoiarena... [+]
AEB, 1900eko azaroaren 6a. William McKinley (1843-1901) bigarrenez aukeratu zuten AEBetako presidente. Berriki, Donald Trump ere bigarrenez presidente aukeratu ondoren, McKinleyrekiko miresmen garbia agertu du.
Horregatik, AEBetako mendirik altuenari ofizialki berriro... [+]
Urruña, 1750eko martxoaren 1a. Herriko hainbat emakumek kaleak hartu zituzten Frantziako Gobernuak ezarritako tabakoaren gaineko zergaren aurka protesta egiteko. Gobernuak matxinada itzaltzeko armada bidaltzea erabaki zuen, zehazki, Arloneko destakamentu bat. Militarrek... [+]
In the Maszycka cave in Poland, remains of 18,000 years ago were found at the end of the 19th century. But recently, human bones have been studied using new technologies and found clear signs of cannibalism.
This is not the first time that a study has reached this conclusion,... [+]
Porzheim, Germany, February 23, 1945. About eight o’clock in the evening, Allied planes began bombing the city with incendiary bombs. The attack caused a terrible massacre in a short time. But what happened in Pforzheim was overshadowed by the Allied bombing of Dresden a few... [+]
Judea, 2nd century AD. In the turbulent atmosphere of the Roman province, a trial was held against Gaddaliah and Saul, accused of fraud and tax evasion. The trial was reported on a 133-line paper in Greek (pictured). Thinking that it was a Nabataean document, the papyrus was... [+]
Poloniar ikerlari talde batek Sevillako Italica aztarnategiko Txorien Etxea aztertu du, eta eraikinaren zoruko mosaikoak erromatar garaiko hegazti-bilduma xeheena dela ondorioztatu du.
Txorien etxean 33 hegazti daude mosaikoetan xehetasun handiz irudikatuta. Beste... [+]
Archaeologists have discovered more than 600 engraved stones at the Vasagård site in Denmark. According to the results of the data, dating back to 4,900 years ago, it is also known that a violent eruption of a volcano occurred in Alaska at that time. The effects of this... [+]
Vietnam, February 7, 1965. The U.S. Air Force first used napalma against the civilian population. It was not the first time that gelatinous gasoline was used. It began to be launched with bombs during World War II and, in Vietnam itself, it was used during the Indochina War in... [+]
Japan, 8th century. In the middle of the Nara Era they began to use the term furoshiki, but until the Edo Era (XVII-XIX. the 20th century) did not spread. Furoshiki is the art of collecting objects in ovens, but its etymology makes its origin clear: furo means bath and shiki... [+]