Galletti was born in Altenburg, Holy Roman Empire.
His fame is not based on his merits as an academic, but on his reputation as the creator of a few hundreds of stylistic howlers, becoming a legend as Kathederblüten (teacher's howlers) originated during his time as a professor at the Ernestine Gymnasium in Gotha.
He was known as the "absent-minded professor of Gotha" and died there aged 77.
Some Kathederblüten of Galletti: This article about a German scientist is a stub.
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