Portrait of Kenneth V. Thimann

Birthday profile

Kenneth V. Thimann

Kenneth V. Thimann, English-American botanist and microbiologist (died 1997)

Born
August 5, 1904
Died
January 15, 1997
Zodiac sign
Leo
Birth year
1904

About Kenneth V. Thimann

Kenneth Vivian Thimann (August 5, 1904 – January 15, 1997) was an English-American plant physiologist and microbiologist known for his studies of plant hormones, which were widely influential in agriculture and horticulture. He isolated and determined the structure of auxin, the first known plant hormone. He spent most of his early career (1935–1965) at Harvard University, and his later career (1965–1989) at the University of California, Santa Cruz. He is credited with identifying indole-3-acetic acid as an auxin. Thimann was born in Ashford, England. His older brother was the composer Eric Thiman. He studied chemistry and biochemistry at Imperial College, University of London (earning a B.Sc. and a Ph.D.) and also received a diploma from the University of Graz. After several years teaching at the University of London, Thimann moved to the California Institute of Technology in 1930. In 1935, he joined the Biology department of Harvard University. He authored an influential book on plant hormones, Phytohormones, in 1937 (co-authored with F. W. Went). He was elected to the American Academy of Arts and Sciences in 1938. Thimann became director of Harvard's Biological Laboratories in 1946, a position he held until 1950. He was elected to the United States National Academy of Sciences in 1948. In 1955 he wrote The Life of Bacteria, an influential book on microbiology. He was elected to the American Philosophical Society in 1959. From 1962 until leaving Harvard in 1965, Thimann was the Higgins Professor of Biology. Thimann moved to University of California, Santa Cruz (UCSC) in 1965—the year of its founding—to become the first provost of Crown College. At UCSC, he was largely responsible for building the science departments of the new university. He also played a central role in fostering the UCSC Arboretum and its botanical collection. After retiring as provost in 1972, Thimann remained at UCSC until 1989, when he moved to Haverford, Pennsylvania. In 1977, he wrote Hormone Action in the Whole Life of Plants. He won the Balzan Prize in 1982 in recognition of his contributions to botany. There is a lecture hall called Thimann Lecture Hall within the campus of UCSC.

Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.

Kenneth V. Thimann timeline

  1. Kenneth Vivian Thimann (August 5, 1904 – January 15, 1997) was an English-American plant physiologist and microbiologist known for his studies of plant hormones, which were widely influential in agriculture and horticulture.
  2. Thimann became director of Harvard's Biological Laboratories in 1946, a position he held until 1950.
  3. He won the Balzan Prize in 1982 in recognition of his contributions to botany.

The world when Kenneth V. Thimann was born

Kenneth V. Thimann was born in 1904. The year snapshot below places that birthday in its cultural and historical setting: the music and films people were following, the headlines shaping public life, and the everyday prices families encountered.

Culture in 1904

  • Best-selling book"The Crossing" – Winston Churchill

Headlines and milestones

  • Major sports momentFirst Olympic Games in the Americas (St. Louis)
  • Top headlineRusso-Japanese War begins
  • Technology milestoneNew York subway opens
  • World population~1.64B

United States snapshot

  • U.S. leaderTheodore Roosevelt
  • U.S. population81.8M

1904 versus 2026

These figures put everyday life in Kenneth V. Thimann's birth year beside the site's latest United States snapshot.

Measure19042026
Population81.8M341 million

Sources and editorial standards

This profile combines a biographical source with structured birthday and historical context. Sources recorded for this profile: Wikipedia, Encyclopaedia Britannica, Library of Congress, Wikidata. See our editorial policy for sourcing, corrections, and review standards.

Read the source biography on Wikipedia. Wikipedia text is available under the Creative Commons Attribution-ShareAlike License.