The construction work for the "Fehmarnbelt fixed link" started 2.5 years ago on January 1, 2021. 

Although this is proven especially for unbelievers in the tag "note" with naming of a source, that is ignored, and road as well as rail re-tagged from "construction" to "proposed". :-/

The date can also be read in the English Wikipedia article:
https://en.wikipedia.org/wiki/Fehmarn_Belt_fixed_link
