By the mid-1860s, Trollope had reached a fairly senior position within the Post Office hierarchy, despite ongoing differences with Rowland Hill, who was at that time Chief Secretary to the Postmaster General. Postal history credits Trollope with introducing the pillar box (the ubiquitous mail-box) in the United Kingdom. He was earning a substantial income from his novels. He had overcome the awkwardness of his youth, made good friends in literary circles, and hunted enthusiastically. In 1865, Trollope was among the founders of the liberal Fortnightly Review.