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2003
A division of the German pharmaceutical company Bayer knowingly sold blood-clotting agents infected with HIV to Asia and Latin America months after withdrawing them from Europe and the US. They were sold to Haemophiliacs, thousands of whom later died
A division of the German pharmaceutical company Bayer knowingly sold blood-clotting agents infected with HIV to Asia and Latin America months after withdrawing them from Europe and the US. They were sold to Haemophiliacs, thousands of whom later died
https://phys.org/news/2022-01-harvard-mathematician-year-old-chess-problem.html Harvard mathematician answers 150-year-old chess problem
phys.org
Harvard mathematician answers 150-year-old chess problem
The queen is the most powerful piece on the chessboard. Unlike any other (including the king), it can move any number of squares vertically, horizontally, or diagonally.