"In 1858, the R&A issued new rules for its members; Rule 1 stated 'one round of the Links or 18 holes is reckoned a match unless otherwise stipulated'. We can only presume that, as many clubs looked to the R&A for advice, this was slowly adopted throughout Britain. By the 1870s, therefore, more courses had 18 holes and a round of golf was being accepted as consisting of 18 holes."