The Axiom of Choice (AC) was formulated about a century ago, and it was controversial for a few of decades after that; it might be considered the last great controversy of mathematics. It is now a basic assumption used in many parts of mathematics.
The shoreline to the east of the [Nooksack River] delta has been significantly modified over the past decades by landfills, piers, and breakwaters for numerous port oriented industrial and commercial establishments associated with the port and City of Bellingham.