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15/01/1895 Finnish chemist Artturi Ilmari Virtanen is born

He invented a new method of fodder preservation, called AIV silage. To the green fodder is added a liquid called AIV, after his initials, Artturi Ilmari Virtanen. The liquid consist of 76% formic acid, 5.5% ammonium formate, and water. The method improved milk production. Virtanen also invented another method for preserving butter.