On September 16, 1886, Hans Arp was born. He was a German-French sculptor, painter, and poet associated with Dada and abstract art. Arp spent his final years in Basel, where he died in 1966. See wikipedia for more information.

On September 16, 1825, Simeon Bavier was born. He was a Swiss politician and member of the Swiss Federal Council from 1878 to 1883, known for his work on transportation infrastructure in the Grisons region. Bavier spent his later years in Basel, where he died. See wikipedia for more information.