1675day.year
John Flamsteed is appointed the first Astronomer Royal of England.
In 1675, John Flamsteed was appointed as the first Astronomer Royal of England, tasked with improving navigation and star charts.
On March 4, 1675, John Flamsteed was appointed as the first Astronomer Royal of England by King Charles II. He was tasked with mapping the stars and improving celestial tables to aid navigation. Flamsteed established the Royal Observatory at Greenwich, which became a center for astronomical research. His precise observations greatly enhanced the accuracy of star catalogs. This work supported the development of accurate timekeeping and longitude determination at sea. Flamsteed’s contributions laid the groundwork for modern astronomy.
1675
John Flamsteed
Astronomer Royal
1918day.year
A case of influenza was recorded at Camp Funston, Kansas, conventionally marking the beginning of the worldwide Spanish flu pandemic.
The first recorded U.S. case of the 1918 Spanish flu pandemic appeared at Camp Funston, Kansas, marking the start of one of history’s deadliest outbreaks.
On March 4, 1918, at the U.S. Army training facility in Camp Funston, Kansas, doctors documented the first known case of what would become the 1918 Spanish flu pandemic. Within days, the virus spread rapidly through the camp's dense military population, fueled by close quarters and troop movements. Irritating symptoms quickly escalated to severe respiratory distress in many soldiers. As troops deployed abroad, they carried the novel influenza strain to Europe and beyond. The pandemic ultimately claimed an estimated 50 million lives worldwide, eclipsing the death toll of World War I. The outbreak revealed vulnerabilities in global public health systems and spurred advances in epidemiology and disease surveillance. Camp Funston thus holds a somber place in medical history as ground zero of an unparalleled epidemic.
1918
Camp Funston
Kansas
Spanish flu
1985day.year
The Food and Drug Administration approves a blood test for HIV infection, used since then for screening all blood donations in the United States.
In 1985, the FDA approved the first blood test for HIV, transforming blood screening practices in the United States.
During the height of the AIDS crisis, the FDA's approval of an HIV blood test provided a critical tool to safeguard the blood supply.
The test enabled routine screening of all donated blood, dramatically reducing the risk of transfusion-transmitted HIV.
Its implementation marked a major advance in public health and laboratory diagnostics.
Over time, testing methods improved in accuracy and speed, further enhancing safety.
The decision laid the groundwork for widespread HIV testing protocols in medical and community settings.
1985
Food and Drug Administration
blood test
HIV
blood donations
1986day.year
The Soviet Vega 1 begins returning images of Halley's Comet and the first images of its nucleus.
The Soviet spacecraft Vega 1 began sending back the first close-up images of Halley's Comet in 1986, including its elusive nucleus.
Launched in 1984, Vega 1 conducted a dual mission of Venus flyby and Halley's Comet encounter.
On March 4, 1986, it started transmitting detailed images of the comet's coma and nucleus.
These were the first direct observations of a comet's core structure, revealing a dark, irregular surface.
Scientific instruments aboard Vega 1 collected data on dust, plasma, and gas emissions.
The mission significantly advanced our understanding of comet composition and behavior.
International collaboration followed, as other spacecraft joined the Halley Armada.
1986
Soviet
Vega 1
Halley's Comet
1994day.year
Space Shuttle program: the Space Shuttle Columbia is launched on STS-62.
Space Shuttle Columbia lifted off on mission STS-62 in 1994, embarking on a two-week journey of scientific experiments.
STS-62 launched on March 4, 1994, from Kennedy Space Center.
The mission carried a suite of microgravity and materials processing experiments.
Columbia orbited Earth at an altitude of approximately 296 kilometers for 14 days.
Researchers studied fluid dynamics, combustion processes, and crystal growth in space.
International partners contributed instruments, showcasing global cooperation in space science.
STS-62’s success strengthened confidence in long-duration shuttle missions.
1994
Space Shuttle program
Space Shuttle Columbia
STS-62