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Today is: April 29
Scroll to explore events active on this date.
For the current year, this category includes: 3160 events.
Category: Science & Mathematics
Highlighting global events relating to the sciences and mathematics.
Science and math is a heavy-duty category covering a lot of ground. It focuses on the sciences, including but not limited to astronomy, biology, chemistry, physics, geography, anthropology, engineering, and mathematics.
Science & Math Events
Richter Scale Day (1900): April 26
Daily
Richter Scale Day marks the birthday of physicist and seismologist Charles Francis Richter (April 26, 1900 - September 30, 1985). His and Bent Gutenberg’s 1935 invention, the Richter Scale, is the standar...
January
Girls in ICT Day, Intl.: April 27
Daily
The theme for Girls in Information and Communications Technology (ICT) focuses on digital skills for life. To enable girls and young women to thrive in STEM careers, it is important for them to acquire s...
January
Moon—New: April 27
Daily
The new moon occurs when the moon and the sun have the exact elliptical longitude when the moon is at its closest point to the sun in its orbit. From earth, we usually cannot see it. The new moon is consi...
January
Tornado Day, Ntl. (2011): April 27
Daily
Between 8 AM on April 27 and 8 AM on April 28, 2011, 226 tornados touched down in the United States, killing 334 people. It was the most intensive outbreak of tornados ever recorded in the country. Today...
January
International Day for the Foundation of th...
Daily
International Day for the Foundation of the Organisation for the Prohibition of Chemical Weapons, or #OPCWDay, marks April 29, 1997, the establishment of articles prohibiting chemical weapons in war. Ac...
January
Moon—First Quarter: August 1
Daily
The first quarter moon occurs when the moon is one-half illuminated by the sun. Each day forward increases the amount of the moon you can see. The 1st quarter typically occurs seven days after the New Moo...
January
World Wide Web Day, (1990): August 1
Daily
World Wide Web Day occurs on August 1 to mark the anniversary of the creation of the World Wide Web in August 1990. The creator, Tim Berners-Lee of CERN, first proposed the concept of the World Wide Web i...
January
Keep Australia Beautiful Week: August 4-10...
Weekly
Keep Australia Beautiful Week is held in late August each year to raise awareness about the simple things we can all do in our daily lives to reduce our environmental impact and encourage action.
January
Infinity Day, Intl.: August 8
Daily
Created by Jean-Pierre Ady Fenyo, International Infinity Day shows that the number 8, when turned sideways, is the symbol for infinity. On the eighth month of the year, on the eighth day, it's doubly luck...
January
Moon—Full: August 9
Daily
A full moon occurs when the moon is illuminated by the sun and on the opposite side of the earth. Its ecliptic longitude is 180 degrees. For centuries, people have applied names to full moons to track th...
January
Science Week, Ntl.,(AU): August 9-17 (est)
Weekly
NATIONAL SCIENCE WEEK IN AUSTRALIA: CELEBRATING INNOVATION AND DISCOVERY National Science Week, held annually in August, is Australia's premier event celebrating science, technology, engineering, and mat...
January
Failures Day, Ntl.: August 15*
Daily
National Failures Day instills the importance of failure in the pursuit of success. The Case Foundation sponsors this event each year and asks parents to speak with their children about the essential ro...
January
Moon—Third Quarter: August 16
Daily
Today is the third quarter of the moon, meaning it is halfway between the full moon and the new moon.
January
Photography Day, World (1839): August 19
Daily
On August 19, 1839, the French government purchased the patent for the Daguerreotype process from Louis Daguerre and Joseph Nicephore Niepce. His is the invention that made photography possible. Rather th...
January
Dosimetrist Day, Ntl. Medical: August 20
Daily
International Dosimetrist Day honors the men and women of the radiation oncology team. Medical dosimetry professionals run the radiation equipment used in fighting cancer. It is marked each year on the...
January
Surgical Oncologist Day, Ntl. (1947): Augu...
Daily
Surgical Oncologist Dwight Carlton De Risi was born on August 22, 1947. He is considered the pioneer of modern surgical oncology, a surgeon specializing in diagnosing cancer via biopsy and removing tumors...
January
Moon—New: August 23
Daily
The new moon occurs when the earth's satellite and the sun are on the exact elliptical longitude. The moon is at its closest point to the sun in its orbit. From our planet, we usually cannot see it. The n...
January
Composites Week, Ntl.: August 25-29
Weekly
NATIONAL COMPOSITES WEEK: HIGHLIGHTING INNOVATION AND SUSTAINABILITY National Composites Week, held annually in August, celebrates the advancements and applications of composite materials in the United S...
January
Petroleum and Natural Gas Day (1859), Ntl....
Daily
National Petroleum & Natural Gas Day focuses on the Petroleum and Natural Gas industries and the role each plays in our lives. It marks the anniversary of the discovery of oil in Titusville, Pennsylvania,...
January
Shrimp and Petroleum Festival, (US-LA): Au...
Weekly
Celebrating Louisiana's two most significant industries, oil, and shrimp, the Louisiana Shrimp and Petroleum Festival features food, music, carnival rides, exhibitions, and family fun. This event first ra...
January
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