Brussels-Charleroi Canal
...that construction of the Brussels-Charleroi Canal was ordered several times over nearly 400 years before work finally began in 1827?
...that construction of the <b id="mwEDw"><a class="mw-redirect" href="./Brussels-Charleroi_Canal" id="mwED0" rel="mw:WikiLink" title="Brussels-Charleroi Canal">Brussels-Charleroi Canal</a></b> was ordered several times over nearly 400 years before work finally began in 1827?