The video is broadly right that Edward Bernays was a major pioneer of public relations and propaganda, but it exaggerates how directly he caused some historical events and oversimplifies some campaigns.
Claim-by-claim breakdown
Accurate (98% confidence): Edward Bernays was born in Vienna in 1891, died in Cambridge, Massachusetts in 1995, and lived to age 103. Library of Congress and other reference sources list Bernays as born November 22, 1891 and dying March 9, 1995 in Cambridge, Massachusetts.
Accurate (97% confidence): Bernays was doubly related to Sigmund Freud because his mother was Freud's sister and his father was Freud's brother-in-law. Bernays' mother was Anna Freud, Sigmund Freud's sister, and his father Ely Bernays was the brother of Martha Bernays, Freud's wife.
Accurate (88% confidence): Bernays helped establish modern public relations and called himself a 'public relations counsel.' Library of Congress and History Today describe Bernays as a pioneer/founder of public relations; his own work used the title 'Counsel on Public Relations.'
Accurate (99% confidence): Bernays' book 'Propaganda' says that the conscious and intelligent manipulation of public opinion is an important element in democratic society and refers to an 'invisible government'. Google Books excerpts from the 1928 edition contain the famous passage about manipulation of the masses and the 'invisible government'.
Accurate (84% confidence): Bernays' Beech-Nut bacon campaign helped promote bacon and eggs as a hearty breakfast and linked that idea to expert authority. Secondary sources describe Bernays asking doctors to endorse a heavy breakfast and then publicizing the result as support for bacon and eggs.
Misleading (90% confidence): Bernays' 1929 'Torches of Freedom' stunt was a staged PR event that got newspaper attention, but it did not single-handedly create women's smoking habits. Historical analysis shows the march was a Bernays-driven publicity stunt, yet later scholarship notes the campaign's influence on women's smoking was more limited than the myth suggests and that women were already smoking publicly before…
Misleading (93% confidence): Bernays helped shape U.S. public opinion about Guatemala for United Fruit, but he did not personally overthrow Guatemala's elected government. State Department historical records show United Fruit's role in the Guatemala crisis and Operation PBSUCCESS; Bernays was part of the pro-United Fruit messaging effort, but the coup itself was a CIA operation.
Accurate (72% confidence): Bernays' methods influenced modern PR, advertising, astroturfing, and other forms of media manipulation. Authoritative biographies describe Bernays as a pioneer whose methods continue to influence PR; however, the claim that he invented every later tactic is not directly supported.