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Hace 11 horas · Historian James Belich has argued that the Black Death, a bubonic plague pandemic occurring in Afro-Eurasia from 1346 to 1353, set the conditions that made the Great Divergence possible. He argues that the pandemic, which caused mass death in Europe, doubled the per capita endowment of everything.
Hace 11 horas · Properties and chemistry DDT is similar in structure to the insecticide methoxychlor and the acaricide dicofol. It is highly hydrophobic and nearly insoluble in water but has good solubility in most organic solvents, fats and oils. DDT does not occur naturally and is synthesised by consecutive Friedel–Crafts reactions between chloral (CCl 3 CHO) and two equivalents of chlorobenzene (C 6 H 5 ...
- C₁₄H₉Cl₅
- 354.48 g·mol−1
- 108.5 °C (227.3 °F; 381.6 K)
- 25 μg/L (25 °C)
Hace 11 horas · Source: [1] [2] The demography of Scotland includes all aspects of population, past and present, in the area that is now Scotland. Scotland had a population of 5,463,300 in 2019. The population growth rate in 2011 was estimated as 0.6% per annum according to the 2011 GROS Annual Review. [3] Covering an area of 78,782 square kilometres (30,418 ...
Hace 1 día · In April 1904, there was a bubonic plague scare in the shanty town area of Brickfields. The town council decided to condemn the area and burn it down. Beforehand, most of the Africans living there were moved far out of town to the farm Klipspruit (later called Pimville), south-west of Johannesburg, where the council had erected iron barracks and a few triangular hutments.
Hace 11 horas · 1900 – A Chinese immigrant in San Francisco falls ill to bubonic plague in the first plague epidemic in the continental United States. 1901–present. 1904 – The Great Baltimore Fire begins in Baltimore, Maryland; it destroys over 1,500 buildings in 30 hours. 1940 – The second full-length animated Walt Disney film, Pinocchio, premieres.
