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1721 (MDCCXXI) was a common year starting on Wednesday of the Gregorian calendar and a common year starting on Sunday of the Julian calendar, the 1721st year of the Common Era (CE) and Anno Domini (AD) designations, the 721st year of the 2nd millennium, the 21st year of the 18th century, and the 2nd year of the 1720s decade. As of the start of 1721, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.
The year 1700 in science and technology involved some significant events.
The year 1817 in science and technology involved some significant events, listed below.
The year 1815 in science and technology involved some significant events, listed below.
The year 1776 in science and technology involved some significant events.
The year 1766 in science and technology involved some significant events.
The year 1799 in science and technology involved many significant events, listed below.
The year 1858 in science and technology involved some significant events, listed below.
The year 1852 in science and technology involved some significant events, listed below.
Carl Peter Thunberg, also known as Karl Peter von Thunberg, Carl Pehr Thunberg, or Carl Per Thunberg, was a Swedish naturalist and an "apostle" of Carl Linnaeus. After studying under Linnaeus at Uppsala University, he spent seven years travelling in southern Italy and Asia, collecting and describing people and animals new to European science, and observing local cultures. He has been called "the father of South African botany", "pioneer of Occidental Medicine in Japan", and the "Japanese Linnaeus".
The year 1730 in science and technology involved some significant events.
This is a list of significant events that occurred in the year 1718 in science.
The year 1715 in science and technology involved some significant events.
The year 1707 in science and technology involved some significant events.
The year 1616 in science and technology involved some significant events.
The year 1632 in science and technology involved some significant events.
The year 1629 in science and technology involved some significant events.
The year 1638 in science and technology involved some significant events.
The year 1673 in science and technology involved some significant events.
Regnier de Graaf, original Dutch spelling Reinier de Graaf, or Latinized Reijnerus de Graeff, was a Dutch physician, physiologist and anatomist who made key discoveries in reproductive biology. He specialized in iatrochemistry and iatrogenesis, and was the first to develop a syringe to inject dye into human reproductive organs so that he could understand their structure and function.
References
- ↑ Cortada, James W. (1998). "Rise of the knowledge worker". Resources for the Knowledge-based Economy. Knowledge Reader Series. Vol. 8. Butterworth-Heinemann. p. 141. ISBN 0-7506-7058-4.