Analysis of information sources in references of the Wikipedia article "1966 Paris–Roubaix" in English language version.
A climb adjacent to Mons-en-Pévèle, Caouin, featured in 1958 but the cobbled hike to the village itself was introduced in 1966, as one of the race's most fearsome tests. The race organisers plotted a route up the notoriously rough lane known as 'Pas-Roland', and the cobbles instantly made an impact, with Felice Gimondi attacking and reaching the top of the sector alone. He would ride the next 40km solo to win his first and only Paris-Roubaix title, but the Pas-Roland was soon paved over, as was the common treatment for much of the pavé in those days.