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  2. Chemical weapons in World War I - Wikipedia

    en.wikipedia.org/wiki/Chemical_weapons_in_World...

    The most frequently used chemicals during World War I were tear-inducing irritants rather than fatal or disabling poison. During World War I, the French Army was the first to employ tear gas, using 26 mm grenades filled with ethyl bromoacetate in August 1914.

  3. List of highly toxic gases - Wikipedia

    en.wikipedia.org/wiki/List_of_highly_toxic_gases

    Highly Toxic: a gas that has a LC 50 in air of 200 ppm or less. [2] NFPA 704: Materials that, under emergency conditions, can cause serious or permanent injury are given a Health Hazard rating of 3. Their acute inhalation toxicity corresponds to those vapors or gases having LC 50 values greater than 1,000 ppm but less than or equal to 3,000 ppm ...

  4. List of wars by death toll - Wikipedia

    en.wikipedia.org/wiki/List_of_wars_by_death_toll

    This list of wars by death toll includes all deaths that are either directly or indirectly caused by war.These numbers include the deaths of military personnel which are the direct results of a battle or other military wartime actions, as well as wartime/war-related deaths of civilians which are often results of war-induced epidemics, famines, genocide, etc. Due to incomplete records, the ...

  5. Largest artificial non-nuclear explosions - Wikipedia

    en.wikipedia.org/wiki/Largest_artificial_non...

    On 18 March 1937, a natural gas leak caused an explosion, destroying the London School of New London, Texas. The disaster killed more than 295 students and teachers, making it the deadliest school disaster in American history. Letters of sympathy were sent from around the world, including a telegram from Adolf Hitler.

  6. List of friendly fire incidents - Wikipedia

    en.wikipedia.org/wiki/List_of_friendly_fire...

    25 September – In the first gas attack launched by British forces prior to their infantry attack that opened the Battle of Loos, about 140 long tons (140 t) of chlorine gas was released, aimed at the German Sixth Army's positions on the Hohenzollern Redoubt but in places the gas was blown back by wind onto the trenches of the British First ...

  7. Chemical warfare - Wikipedia

    en.wikipedia.org/wiki/Chemical_warfare

    Chemical warfare (CW) involves using the toxic properties of chemical substances as weapons.This type of warfare is distinct from nuclear warfare, biological warfare and radiological warfare, which together make up CBRN, the military acronym for chemical, biological, radiological, and nuclear (warfare or weapons), all of which are considered "weapons of mass destruction" (WMDs), a term that ...

  8. History of chemical warfare - Wikipedia

    en.wikipedia.org/wiki/History_of_chemical_warfare

    The first full-scale deployment of deadly chemical warfare agents during World War I was at the Second Battle of Ypres, on April 22, 1915, when the Germans attacked French, Canadian and Algerian troops with chlorine gas released from canisters and carried by the wind towards the Allied trenches. [24] [25] [26] [27]

  9. List of explosions - Wikipedia

    en.wikipedia.org/wiki/List_of_explosions

    2 January 2021 Afghanistan: Kabul: 5 Unknown A gas cylinder exploded near a bakery. [132] 10 January 2021 China: Qixia: 10 11 Qixia gold mine accident – A gold mine exploded and collapsed. [133] 20 January 2021 Spain: Madrid: 4 10 2021 Madrid explosion – A gas explosion severely damaged a building. [134] 21 January 2021 India: Shivamogga: 8 ...