Gander Airport Older Than London Heathrow?

Watching a video on YouTube about the initial construction of London Heathrow Airport and learned this interesting fact. Work on this new airport commenced in April 1944 and was officially opened on Jan 1,1946 with the departure of it's first flight, eight years after Gander was opened. Heathrow's first terminal was a military tent. At the time Gander was a thriving airport with it's second terminal building. The video talks about the need for such an airport with the startup of commercial aviation worldwide. Gander Airport may have set an example for this necessity. Because the British were instrumental in the construction and operation of Gander Airport, one has to wonder if any of the lessons learned at Gander were passed along. Heathrow is a different place today.