Complete the sentence about Ignacy Łukasiewicz with the correct year: In ______, a handheld pharmaceutical almanac and a precious document entitled manuskrypt, the joint work of Mikolasch and Łukasiewicz was published.

Answer and explanation

Correct answer: C. 1850

In 1850 a handheld pharmaceutical almanac and a precious document entitled manuscript were found in Lviv.

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