Portrait of Louis Bolk

Birthday profile

Louis Bolk

Louis Bolk, Dutch anatomist and biologist (died 1930)

Born
December 10, 1866
Died
June 17, 1930
Zodiac sign
Sagittarius
Birth year
1866

About Louis Bolk

Lodewijk 'Louis' Bolk (10 December 1866, Overschie – 17 June 1930, Amsterdam) was a Dutch anatomist who created the fetalization theory about the human body. It states that when a human being is born, it is still a fetus, as can be seen by its (proportionally) big head, lack of coordination, and helplessness. Furthermore, this "prematuration" is specifically human. Gavin de Beer and Stephen Jay Gould wrote about him and further developed this theory of neoteny in humans. Also Jacques Lacan took Bolk's fetalization theory into account in order to introduce his own thesis on the mirror stage. Bolk wrote in Origin of Racial Characteristics in Man, “White skin...started from an ancestor with a black skin, in whose offspring hair and iris color were suppressed more and more.”.

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

The world when Louis Bolk was born

Louis Bolk was born in 1866. 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 1866

  • Best-selling bookCrime and Punishment by Fyodor Dostoevsky

Headlines and milestones

  • Top headlineReconstruction era begins in the South
  • Technology milestoneTransatlantic telegraph cable successfully laid
  • World population~1.46B

United States snapshot

  • U.S. leaderAndrew Johnson
  • U.S. population34.0M

1866 versus 2026

These figures put everyday life in Louis Bolk's birth year beside the site's latest United States snapshot.

Measure18662026
Population34.0M341 million

Sources and editorial standards

This profile combines a biographical source with structured birthday and historical context. Sources recorded for this profile: Wikipedia, 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.