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On April 16, 2013, an envelope that tested positive for ricin was intercepted at the US Capitol's off-site mail facility in Washington, D.C. According to reports, the envelope was addressed to the office of Senator Roger Wicker, R-Mississippi. [38] The next day, an envelope addressed to President Obama was tested positive for ricin. [39]
Ricin (/ ˈ r aɪ s ɪ n / RY-sin) is a lectin (a carbohydrate-binding protein) and a highly potent toxin produced in the seeds of the castor oil plant, Ricinus communis.The median lethal dose (LD 50) of ricin for mice is around 22 micrograms per kilogram of body weight via intraperitoneal injection.
The Wood Green ricin plot was an alleged bioterrorism plot to attack the London Underground with ricin poison. The Metropolitan Police Service arrested six suspects on 5 January 2003, [ 1 ] [ 2 ] with one more arrested two days later.
January 14: Ratification Day in the United States Poster for the premiere of Tosca 1301 – King Andrew III died without any male heirs, ending the Árpád dynasty , which had ruled Hungary since the late 9th century.
For explanation, see the article about the Gregorian calendar. Except where stated otherwise, the transition was a move by the civil authorities from the Julian to the Gregorian calendar. In religious sources it could be that the Julian calendar was used for a longer period of time, in particular by Protestant and Eastern Orthodox churches. The ...
Image credits: Isabella Thornton #4 Vending Machines. Today’s vending machines are typically stocked with unhealthy snack options, like candy bars, sodas, and chips.
Tomorrow is a temporal construct of the relative future; [1] literally of the day after the current day , or figuratively of future periods or times. Tomorrow is usually considered just beyond the present and counter to yesterday. It is important in time perception because it is the first direction the arrow of time takes humans on Earth.
The ancient Etruscans developed an eight-day market week known as the nundinum around the 8th or 7th century BC. This was passed on to the Romans no later than the 6th century BC. As Rome expanded, it encountered the seven-day week and for a time attempted to include both. The popularity of the seven-day rhythm won, and the eight-day week ...