1. The battle in which Attila the Hun was defeated by the Romans and Visigoths in 451
   - Chalons

Type of: pitched battle

Encyclopedia: Chalons-sur-Marne

• Ostracodermi
• Ostrava
• Ostrea
• Ostrea gigas
• Ostreidae
• ostrich
• ostrich fern
• Ostrogoth
• Ostrya
• Ostrya carpinifolia
• Ostrya virginiana
• Ostryopsis
• Ostwald
• Ostwald's theory of indicators
• Ostyak
• Ostyak-Samoyed
• Oswald
• Oswald Spengler
• Oswald Veblen
• oswego tea
• Otaheite arrowroot
• Otaheite arrowroot starch
• otalgia
• Otaria
• Otaria Byronia