Longest human horn

Longest human horn
Who
Madame Dimanche
Where
France
When
1800
There are many historical instances of humans growing large horns, usually from the head. Madame Dimanche (France), who lived in Paris in the early 19th century, had a horn measuring 25.4 cm (10 in) in length and 5.08 cm (2 in) in diameter at the base.