Jessica LeFlore's History of Public Health Timeline

Dr. Edward Jenner experimented with the inoculation of a similar disease called cowpox that created immunity against the smallpox disease and eventually became the vaccine.
http://broughttolife.sciencemuseum.org.uk/broughttolife/people/edwardjenner

Lemuel Shattuck created his report based off of the public health needs for the Commonwealth of Massachusetts which helped to found the Massachusetts Board of Health in 1869 and was so significant that it was considered the beginning of the modern era of public health.
http://publichealthmuseum.org/wp-content/uploads/2012/06/The-Shattuck-Report.pdf

French scientist Louis Pasteur proposed his theory of germs causing disease through experiments and observations that disproved that popular theory of spontaneous generation.
https://stmuhistorymedia.org/germ-theory-of-disease/

Originally founded by Dr. Stephen Smith, who was a surgeon and the commissioner of New York City’s Health Board that conceptualized the idea of a national public health system.
https://apha.org/about-apha/our-history

Upton Sinclair's book "The Jungle", helped draw attention to the unsafe working environments of immigrants working in the meat packing industry. This eventually led to government regulation and reform for the health and food industry.
https://www.fda.gov/about-fda/fdas-evolving-regulatory-powers/part-i-1906-food-and-drugs-act-and-its-enforcement

The School of Hygiene and Public Health was established in Baltimore at John Hopkins University and was funded by a grant from the Rockefeller Foundation.
https://magazine.jhsph.edu/2015/summer/features/a-century-of-firsts/index.html

President Franklin D. Roosevelt proposed this national insurance plan in response to the need for social and medical services caused by the Great Depression. This was a significant contribution to public health, along with numerous other programs he created as a part of his New Deal.

https://www.ourdocuments.gov/doc.php?flash=false&doc=68

Also know as the Hill-Burton Act, this legislation helped to improve the standards for the quality of healthcare delivery and construction of hospitals.
https://www.npr.org/sections/health-shots/2016/10/02/495775518/a-bygone-era-when-bipartisanship-led-to-health-care-transformation

As amendments to the Social Security Act, these bills helped to assist in the payment of medical bills for the elderly and disabled (Medicare), and for those on financial assistance (Medicaid).

https://www.cms.gov/About-CMS/Agency-Information/History/index.html

Most commonly referred to as "ObamaCare", this law was intended to expand the availabilty of medical insurance to the majority of the population.
https://www.healthcare.gov/glossary/affordable-care-act/