1771: (US) Carl Scheele (1742–1786) makes "fire air" (oxygen) by heating magnesium oxide. His findings are published in June 1774.
1774: (US) Joseph Priestley (1733–1804), credited with the discovery of oxygen, publishes his work on "dephlogisticated air" oxygen 3 months after a report by Carl Scheele.
1954: (US) March 16, 1954 the ITA is renamed the American Association of Inhalation Therapists (AAIT).
1966: (US) February 1966, the ITA was again renamed the American Association for Inhalation Therapy (still, AAIT).
1956: (US) The AAIT begins publishing a science journal, Inhalation Therapy (now RESPIRATORY CARE).
1960: (US)In October 1960 The American Registry of Inhalation Therapists (ARIT) is formed to oversee examinations for formal credentialing for people in the field.
1964: (CA) The Canadian Society of Respiratory Therapists (CSRT) is founded in 1964 as the Canadian Society of Inhalation Therapy Technicians.
1970: (US) In 1970 The Board of Schools of Inhalation Therapy Technicians became the Joint Review Committee for Respiratory Therapy Education (JRCRTE).
1971: (US) The journal Inhalation Therapy is renamed to Respiratory Care.
1974: (US) The two US credentialing programs merge into a single credentialing organization called the National Board for Respiratory Therapy (NBRT) in 1974.
1980: (US) President Jimmy Carter proclaimed the first Cystic Fibrosis Awareness Week. (July 22)
2004: (US) Vermont becomes the 48th state to pass a Respiratory Care Act, effectively bringing legal credentialing to all 48 contiguous states in the United States.
2011: (US) In 2011 the State of Hawaii became the 49th state in the United States to create a Board of Respiratory Care and enacting a Respiratory Care Act.[6]
2012: (US) In April, 2012 the Office of Regulation in the State of Michigan recommends the de-regulation of the respiratory therapy profession.[7] The report, seemingly with its head in the sand as regards respiratory care, concluded de-regulation would "eliminate unnecessary oversight [and remove regulation providing] no value to the citizens of Michigan."
^March 25, 1899 edition of The Lancet, "Bronchitis, Pulmonary Emphysema, and Asthma"
^ abcdeWard JJ, Helmholtz HF: Roots of the respiratory care profession. In Burton GG, Hodgkin JE, Ward JJ, editors: Respiratory care: a guide to clinical practice, ed 4, Philadelphia, 1997, Lippincott.