The year 1867 in science and technology involved many significant events, listed below.
The year 1934 in science and technology involved some significant events, listed below.
The year 1904 in science and technology involved some significant events, listed below.
The year 1906 in science and technology involved some significant events, listed below.
The year 1913 in science and technology involved some significant events, listed below.
The year 1996 in science and technology involved many significant events, listed below.
The year 1826 in science and technology involved some significant events, listed below.
The year 1892 in science and technology involved some significant events, listed below.
The year 1809 in science and technology involved some significant events, listed below.
The year 1896 in science and technology involved some significant events, listed below.
The year 1897 in science and technology involved some significant events, listed below.
The year 1895 in science and technology involved some significant events, listed below.
The year 1898 in science and technology involved some significant events, listed below.
The year 1932 in science and technology involved some significant events, listed below.
The year 1941 in science and technology involved some significant events, listed below.
Carl Gegenbaur was a German anatomist and professor who demonstrated that the field of comparative anatomy offers important evidence supporting of the theory of evolution. As a professor of anatomy at the University of Jena (1855–1873) and at the University of Heidelberg (1873–1903), Carl Gegenbaur was a strong supporter of Charles Darwin's theory of organic evolution, having taught and worked, beginning in 1858, with Ernst Haeckel, eight years his junior.
Antoni Leśniowski was a Polish surgeon, credited with publishing what may have been the earliest reports of the condition which later became known as Crohn's disease.
Internal combustion engines date back to between the 10th and 13th centuries, when the first rocket engines were invented in China. Following the first commercial steam engine in 1698, various efforts were made during the 18th century to develop equivalent internal combustion engines. In 1791, the English inventor John Barber patented a gas turbine. In 1794, Thomas Mead patented a gas engine. Also in 1794, Robert Street patented an internal-combustion engine, which was also the first to use liquid fuel (petroleum) and built an engine around that time. In 1798, John Stevens designed the first American internal combustion engine. In 1807, French engineers Nicéphore and Claude Niépce ran a prototype internal combustion engine, using controlled dust explosions, the Pyréolophore. This engine powered a boat on the river in France. The same year, the Swiss engineer François Isaac de Rivaz built and patented a hydrogen and oxygen-powered internal-combustion engine. Fitted to a crude four-wheeled wagon, François Isaac de Rivaz first drove it 100 metres in 1813, thus making history as the first car-like vehicle known to have been powered by an internal-combustion engine.
The following events occurred in May 1903:
The 19th century in science saw the birth of science as a profession; the term scientist was coined in 1833 by William Whewell, which soon replaced the older term of (natural) philosopher.
