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Events on this Day – 3 September

1939

Alongside Britain and Australia, New Zealand was one of the first countries to become involved in the global conflict precipitated by Germany's invasion of Poland on 1 September 1939.

1958

Pioneering heart surgeon Brian Barratt-Boyes performed the surgery using a heart-lung bypass machine. The procedure, at Green Lane Hospital in Auckland, was carried out on an 11-year-old girl with a hole in her heart.