Stanislao Cannizzaro
Italian chemist, Avogadro’s principle proponent
Italian chemist, Avogadro’s principle proponent
1826
200 years ago
Scientists & Innovators
Italy
A prominent chemist contributed significantly to the field of atomic theory and molecular weights. Cannizzaro established the Cannizzaro reaction, which allows for the synthesis of aldehydes from alkali metal salts of carboxylic acids. Participated in the 1860 Karlsruhe Congress, where principles of atomic weight were discussed. Cannizzaro’s work helped clarify the importance of both atomic and molecular weights for chemical sciences and provided a basis for subsequent developments in chemistry.
Published a pivotal paper on atomic weights
Developed the Cannizzaro reaction
Born in Colombia and raised in the United States, a singer-songwriter, guitarist, and producer gained recognition in the Latin music scene. Debuted with the album 'Onto This Road' in 1996 and continued to release several successful albums. Gained acclaim for blending pop and traditional Latin music styles. Advocated for various social causes, including awareness around breast cancer following a personal battle with the disease.
Continue ReadingFirst President of Ukraine, serving from 1991 to 1994. Played a significant role in Ukraine's independence from the Soviet Union. Previously held positions as Chairman of the Supreme Soviet of Ukraine and was involved in the development of the country's new constitution. His leadership helped establish Ukraine's political framework in the post-Soviet era.
Continue ReadingServed as an SS officer and was responsible for multiple concentration camps during World War II. Held the position of inspector of concentration camps, overseeing the conditions and operations within these facilities. Managed the camps of Auschwitz and other locations, significantly contributing to the implementation of the Nazi regime's policies regarding internment and extermination.
Continue ReadingA prominent painter and illustrator, this individual gained recognition for impactful fantasy artwork that defined the genre. Early artistic endeavors included comic book illustrations, contributing to characters in the 1940s and 1950s. The portfolio expanded to include iconic fantasy book covers, notably for the 'Conan the Barbarian' series. Art style integrated dramatic compositions and vivid colors, influencing many contemporary artists. Frazetta's work extended to movie poster art and gallery exhibitions, further cementing a legacy within the fantasy art community.
Continue ReadingA poet and illustrator, gained prominence through children's literature. Authored widely read books including 'The Giving Tree' and 'Where the Sidewalk Ends'. Worked as a cartoonist and songwriter, contributing music to notable artists such as Johnny Cash. Established a unique style combining whimsical stories with profound themes, making a lasting impact on children's poetry.
Continue ReadingWidow of John of Gaunt, played a significant role in the English royal lineage. In the late 14th century, maintained a connection to the Plantagenet dynasty through her relationship with Gaunt. Their children, known as the Beauforts, were influential figures in English nobility. Married John of Gaunt after his first wife's death, achieving a union that was contentious due to issues of legitimacy. Her descendants would later connect to the royal house of Tudor, contributing to the political landscape of England.
Continue Reading