Heart Motu Cordis" (1628) by the English physician William Harvey. Harvey's book completely describes the systemic circulation and the mechanical force of the heart, leading to an overhaul of the Galenic doctrines. Otto Frank (1865–1944) was a German physiologist; among his many published works are detailed studies of this important heart relationship. Ernest Starling (1866–1927) was an important English physiologist who also studied the heart. Although they worked largely independently, their combined efforts and similar conclusions have been recognized in the name "Frank–Starling mechanism". Although Purkinje fibers and the bundle of His were discovered as early as the 19th century, their
Anarchism and issues related to love and sex homosexuals in France: "The harshest [criticisms] came from Marxists, who tend seriously to underestimate the form of oppression which is antisexual terrorism. I expected it, of course, and I knew that in publishing my book I was running the risk of being attacked by those to whom I feel closest on a political level." Later sexual anarchists continued in that vein. In 1993, the "Boston Anarchist Drinking Brigade" criticized "anti-porn activists who are frankly censorious." Emile Armand advocated naturism (see anarcho-naturism) and polyamory. He also called for forming voluntary associations for purely sexual purposes of heterosexual, homosexual, or bisexual nature