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Epistemology is the branch ofphilosophy that examines the nature, origin, and limits ofknowledge. It investigates various types of knowledge, including theoretical and practical knowledge, and related concepts, such asbelief,truth, andjustification. Epistemologists distinguish different sources of knowledge, ranging fromperception andintrospection tomemory,reason, andtestimony. The schools ofskepticism andfallibilism question the existence and certainty of knowledge, whileempiricism andrationalism debate whether all knowledge stems from sense experience. Theories discussing the nature and role of justification includefoundationalism,coherentism,internalism, and externalism. Separate branches of epistemology focus on knowledge in specific fields, such as scientific, mathematical, moral, and religious knowledge. Other branches are characterized by the aspects of knowledge they investigate or the research methodologies they use. Early reflections on the nature, sources, and scope of knowledge are found inancient Greek,Indian, andChinese philosophy. (Full article...)

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Sanahin Bridge

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Mark Carney

In Canada, theLiberal Party, led by Prime MinisterMark Carney(pictured), wins the most seats inthe federal election.
A major power outage affects most of theIberian Peninsula.
An explosion and fire at thePort of Shahid Rajaee, Iran, kills at least 70 people and injures more than 1,200 others.
At least 11 people are killed ina car-ramming attack at a street festival inVancouver, Canada.

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On this day

May 1:Beltane andSamhain in the Northern and Southern Hemispheres, respectively;Maharashtra Day inMaharashtra, India (1960);International Workers' Day;Law Day,Loyalty Day andNational Day of Prayer (2025) in the United States

Empire State Building

305 –Diocletian andMaximian retired as co-rulers of theRoman Empire, being succeeded byGalerius andConstantius Chlorus.
1794 –War of the Pyrenees: France regained nearly all the land it lost to Spain the previous year with its victory in theSecond Battle of Boulou.
1931 – New York City'sEmpire State Building(pictured), at the time thetallest building in the world, opened.
1974 – Argentine presidentJuan PerónexpelledMontoneros from a demonstration in thePlaza de Mayo in Buenos Aires, forcing the group to become a clandestine organization.

Alexander William Williamson (b. 1824)
Anna Jarvis (b. 1864)
Eldridge Cleaver (d. 1998)

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Euthrix potatoria, commonly known as the drinker, is an orange-brownmoth in the familyLasiocampidae. The species' common and scientific names derive from the larva's supposed drinking of drops ofdew. It is found in Europe, most frequently found in marshy places, fens and riversides but may also be seen in drier, grassy terrain. The larva (caterpillar) of this species grows to about 6 cm (2.3 in) in length and is hairy, striped and spotted, with distinctive tufts fore and aft. Caterpillars hibernate while young and resume feeding in the spring, pupating in a cocoon during the summer. This picture shows the top of anE. potatoria caterpillar inKeila, Estonia.

Photograph credit:Ivar Leidus

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