CN Tower belongs to the Common Era — dated here to c. 1976 CE at Toronto, Canada. Dates mark a scholarly centre of gravity (dedication, completion, or iconic phase), not a single foundation day.
A 553-metre concrete communications tower — once the world’s tallest freestanding structure.
How it amazes the brain
Slip-form concrete poured continuously, a revolving restaurant, and a glass floor that tests courage.
Why it counts as a wonder
It never needed a contest ballot to scramble the brain: scale, craft, or sheer improbability is enough.
A needle that still defines Toronto’s skyline.
On dating
CE means years after the traditional birth of Christ. A monument listed as c. 1976 CE may have been founded earlier, rebuilt later, or become famous only in one phase. Engineering wonders (dams, tunnels, orbiting labs) are dated to opening or assembly.
This is story 64 of 100 in The Trend Ledger’s illustrated desk on world wonders raised after the birth of Christ — the companions to our BCE series.