Because of the Dems' and MSM's (repetitive and redundant, I know)
Trump-Has-Done-Nothing narrative, the Trump Campaign has a timeline webpage of Trump Administration actions,
https://www.donaldjtrump.com/media/timeline-the-trump-administrations-decisive-actions-to-combat-the-coronavirus/ . They appear to be updating it regularly from Trump's daily briefings. I've rooted through it selectively, DDGed to find supporting government webpages and non-conservative-source news articles, and merged what I chose from that webpage with my timeline above:
China informed WHO of the outbreak in Wuhan of unknown cause: December 31, 2019,
https://www.who.int/csr/don/05-january-2020-pneumonia-of-unkown-cause-china/en/Taiwanese health officials alerted WHO of the infectivity of coronavirus: December 31, 2019,
https://dailycaller.com/2020/03/20/who-taiwan-coronavirus-warning/ ,
https://www.ft.com/content/2a70a02a-644a-11ea-a6cd-df28cc3c6a68Taiwan started boarding planes arriving from Wuhan, China to screen passengers for symptoms: December 31, 2019,
https://jamanetwork.com/journals/jama/fullarticle/2762689CDC issued a Level 1 travel notice for Wuhan, China: January 6, 2020,
https://afludiary.blogspot.com/2020/01/cdc-issues-level-1-watch-travel-notice.htmlCDC established a coronavirus incident management system: January 7, 2020,
https://www.cdc.gov/vaccines/videos/coronavirus/COVID-19-webinar.pdfCovid-19 identified to WHO: January 11 and 12, 2020,
https://www.who.int/csr/don/12-january-2020-novel-coronavirus-china/en/China/WHO claims no evidence of human to human transmission of corona virus: January 14, 2020,
https://twitter.com/WHO/status/1217043229427761152World Health Organization (WHO)
@WHO
Jan 14
Preliminary investigations conducted by the Chinese authorities have found no clear evidence of human-to-human transmission of the novel #coronavirus (2019-nCoV) identified in #Wuhan, #China.
The US started screening arriving passengers from China: January 17, 2020, JFK, SFO, LAX
https://www.businessinsider.com/new-disease-virus-china-us-airports-screening-cdc-2020-1 ; O'Hare and Hartsfield-Jackson January 22, 2020,
https://www.washingtonpost.com/nation/2020/01/21/us-screenings-coronavirus-expanded-airports-atlanta-chicago/Dr. Fauci announces the National Institutes of Health working developing a vaccine for coronavirus: January 20, 2020,
https://www.cnn.com/2020/01/20/health/coronavirus-nih-vaccine-development/index.htmlCDC activated its emergency operations center: January 20, 2020,
https://emergency.cdc.gov/recentincidents/index.asp?cid=EPR-homepagePharmaceuticals company working with US government to develop vaccine: January 22, 2020, Moderna,
https://www.cnbc.com/2020/01/22/moderna-is-working-on-a-vaccine-for-chinas-deadly-coronavirus.htmlCDC sought “special emergency authorization” from FDA to allow states to use its coronavirus test: January 23, 2020,
https://www.reuters.com/article/us-china-health-cdc-idUSKBN1ZM2XSWuhan and other cities in Hubei Province shut down travel: January 23, 2020,
https://news.cgtn.com/news/2020-01-27/5-million-people-left-Wuhan-before-the-lockdown-where-did-they-go--NACCu9wItW/index.htmlWhite House announced the formation of the Coronavirus Task Force: January 29, 2020,
https://thehill.com/policy/healthcare/480627-white-house-announces-task-force-to-monitor-coronavirusUS personnel evacuated from Wuhan: January 29, 2020
https://abcnews.go.com/US/us-chartering-evacuation-flight-wuhan-coronavirus-zone-california/story?id=68571310Trump declared a public health emergency: January 31, 2020,
https://abcnews.go.com/Health/delta-suspends-us-flights-china-amid-coronavirus/story?id=68666037State Department raised the travel advisory for China to Level 4, do not travel: January 31, 2020,
https://www.usatoday.com/story/travel/2020/01/31/coronavirus-china-flight-ban-delta-cuts-all-flights-white-house/4620989002/People entering the US from China forbidden: Announced January 31, 2020, effective February 2, 2020,
https://www.cnn.com/2020/02/02/us/coronavirus-us-travel-restrictions/index.html This effectively ended flights from and to China, for obvious reasons. The current date for flights to resume is March 30, 2020.
CDC had a team ready to travel to China: February 3, 2020,
https://www.reuters.com/article/us-china-health-who-mission-idUSKBN1ZX2BVHHS, Regeneron Collaborate to Develop 2019-nCoV Treatment: February 4, 2020,
https://www.hhs.gov/about/news/2020/02/04/hhs-regeneron-collaborate-to-develop-2019-ncov-treatment.htmlShipping of CDC 2019 coronavirus test kits begins: February 6, 2020,
https://www.cdc.gov/media/releases/2020/p0206-coronavirus-diagnostic-test-kits.htmlHHS expands partnership with Janssen Research & Development for vaccine development: February 11, 2020,
https://www.hhs.gov/about/news/2020/02/11/hhs-janssen-join-forces-on-coronavirus-vaccine.htmlHHS to work with Sanofi Pasteur to develop coronavirus vaccine and treatment: February 18, 2020,
https://www.statnews.com/2020/02/18/sanofi-announces-it-will-work-with-hhs-to-develop-coronavirus-vaccine/An NIH clinical trial of Remdesivir begun: February 25, 2020, at University of Nebraska Medical Center,
https://www.nih.gov/news-events/news-releases/nih-clinical-trial-remdesivir-treat-covid-19-beginsExperimental vaccine submitted for testing: February 26, 2020, Moderna,
https://www.cnn.com/2020/02/25/business/moderna-coronavirus-vaccine/index.htmlTesting labs allowed to use tests whose FDA Emergency Use Authorization requests are still pending: February 29, 2020,
https://www.fda.gov/news-events/press-announcements/coronavirus-covid-19-update-fda-issues-new-policy-help-expedite-availability-diagnosticsLevel 4 travel advisory to Italy, South Korea: February 29, 2020,
https://www.usatoday.com/story/travel/2020/02/29/coronavirus-trump-adds-travel-restrictions-italy-south-korea/4914822002/Iran travel ban announced: February 29, 2020,
https://www.statnews.com/2020/02/29/trump-administration-expands-coronavirus-travel-ban-to-include-iran/CDC lifted federal restrictions on coronavirus testing: March 4, 2020,
https://www.cdc.gov/coronavirus/2019-nCoV/hcp/clinical-criteria.htmlTrump and VP Pence met with health insurance companies and secured commitment to waive co-pays for coronavirus testing: March 10, 2020,
https://www.nbcnews.com/video/trump-pence-meet-with-insurance-executives-agree-to-waive-copays-extend-treatment-80407109506Army signed agreement with Gilead on experimental COVID-19 treatment: March 10, 2020,
https://www.militarytimes.com/news/your-military/2020/03/10/army-signs-agreement-with-drug-giant-gilead-on-experimental-covid-19-treatment/OyaGen, Inc. announced experimental treatment has been studied by National Institute of Allergy and Infectious Diseases: 3/10/2020,
http://www.oyageninc.com/wordpress/wp-content/uploads/2020/03/OyaGen-Press-for-03102020.pdf , "OYA1", not yet tested on humans
Trump suspended travel from Europe: March 11, 2020,
https://news.yahoo.com/trump-suspends-travel-from-europe-for-30-days-as-coronavirus-cases-continue-to-grow-014314635.htmlEli Lilly announced partnership with research company to develop a treatment/vaccine as part of the DARPA program: March 13, 2020,
https://www.msn.com/en-us/finance/companies/eli-lilly-joins-race-to-develop-coronavirus-treatment/ar-BB116BNRTrump declared National Emergency: March 13, 2020,
https://www.msn.com/en-us/news/politics/what-trumps-emergency-declaration-over-coronavirus-means-for-arizona/ar-BB11a6ROTrump announced public-private partnerships for drive-through testing: March 13, 2020,
https://abcnews.go.com/Health/wireStory/trump-announces-public-private-partnership-increase-national-coronavirus-69587547FDA granted emergency approval for faster coronavirus test: March 13, 2020,
https://thehill.com/policy/healthcare/other/487393-fda-grants-emergency-approval-for-faster-coronavirus-testFDA emergency approval for Thermo-Fisher coronavirus test (within 24 hours of applying): March 13, 2020,
https://www.fda.gov/news-events/press-announcements/coronavirus-covid-19-update-fda-issues-emergency-use-authorization-thermo-fisherPublic-private partnerships allowed to open up drive-through testing collection sites: March 13, 2020,
https://www.mercurynews.com/2020/03/13/in-declaring-national-emergency-trump-pledges-drive-thru-testing-greater-flexibility-for-doctors/FDA granted Roche AG an emergency approval for automated coronavirus testing kits: March 13, 2020,
https://www.bloomberg.com/news/articles/2020-03-13/roche-gets-clearance-for-coronavirus-test-that-s-10-times-fasterHHS announced funding for development of two rapid diagnostic tests: March 13, 2020,
https://www.hhs.gov/about/news/2020/03/13/hhs-funds-development-covid-19-diagnostic-tests.htmlEuropean travel ban extended to include the UK and Ireland: March 14, 2020,
https://www.politico.com/news/2020/03/14/white-house-adds-uk-ireland-to-travel-ban-129470Testing begins of Moderna's experimental coronavirus vaccine: March 16, 2020, at Kaiser Permanente Washington Health Research Institute,
https://www.kpwashingtonresearch.org/news-and-events/recent-news/news-2020/kaiser-permanente-launches-coronavirus-vaccine-study-seattleFDA allowing states to authorize use of tests developed by labs in their states: March 16, 2020,
https://seekingalpha.com/news/3552325-fda-to-allow-states-to-authorize-coronavirus-testsDefense Department to give HHS up to 5M respirator masks, 2,000 ventilators: March 17, 2020,
https://www.defense.gov/Explore/News/Article/Article/2115200/dod-poised-to-provide-masks-ventilators-labs-to-hhs-for-coronavirus-fight/HHS to suspended regulation against doctors practicing across state lines: March 18, 2020,
https://www.medicaleconomics.com/news/coronavirus-response-doctors-can-now-practice-across-state-linesTemporary closure of U.S.-Canada border to non-essential traffic: March 18, 2020,
https://www.citynews1130.com/2020/03/18/trump-announces-temporary-u-s-canada-border-closure-amid-virus-pandemic/HUD foreclosures and evictions suspended for a at least 60 days: March 18, 2020,
https://www.hud.gov/sites/dfiles/OCHCO/documents/20-04hsgml.pdfCarnival Cruise Lines ships available for hospital use (non-corona virus patients): March 19, 2020,
https://www.mercurynews.com/2020/03/19/cruise-line-offers-up-ships-for-use-as-temporary-hospitals/State Department global level 4 health advisory, avoid all international travel: March 19, 2020,
https://travel.state.gov/content/travel/en/traveladvisories/ea/travel-advisory-alert-global-level-4-health-advisory-issue.htmlUS Mexico agree to restrict nonessential cross-border traffic: March 20, 2020,
https://www.wesh.com/article/us-and-mexico-coordinating-on-plan-to-restrict-travel-across-the-border-1/31794143Governors remain in command of National Guard, Federals pay 100% of operations cost (all states): March 22, 2020,
https://www.thewrap.com/trump-fema-will-pay-100-of-cost-for-national-guard-in-new-york-california-washington/Army ordered three army hospitals to deploy to New York and Washington: March 24, 2020,
https://armyupdate.com/index.php/2020/03/25/army-medical-hospitals-deploying-to-n-y-and-washington-state/What I have not yet rooted through, selected, and folded into this timeline is this timeline from National Review, which is explosive - thermonuclear, if not Earth-shattering -
https://www.nationalreview.com/the-morning-jolt/chinas-devastating-lies/ . It traces the coronavirus outbreak back into early December, documenting what Chinese medical and government people knew and when, and what and when China told the world.