Étienne Œhmichen in Châlons-en-Champagne (51), Marne (51)

'ICI EST NÉ

ETIENNE ŒMICHEN

CRÉATEUR DE L'HÉLICOPTÈRE

LE 15 OCTOBRE 1884'

Œhmichen invented an early version of the helicopter. He's obviously an important international figure, although the Châlons-en-Champagne tourist office doesn't seem to make much of this. They should be exploiting the interest.