Theoretical and experimental studies of electricity during the 18th and 19th centuries led to the development of the first electrical machines and the beginning of the widespread use of electricity.
In the development of the embryo, the 3rd to 8th postconceptional weeks of pregnancy are the most sensitive.
This engaging and airy history shows how the development of mauve, the first mass-produced artificial dye, ignited a 19th-century revolution in applied science.
The etiology of the 5th-7th century 5th-7th centuryand the 14th-18th–century second pandemic, however, remained putative until recently (1 ).
The epistemic view on probability came into development in the 19th and the first half of the 20th century, first by the hand of De Morgan (1847) and Boole (1854), later by Keynes (1921), Ramsey (1926) and de Finetti (1937), and by decision theorists, philosophers and inductive logicians such as Carnap (1950), Savage (1962), Levi (1980), and Jeffrey (1992).
Second, we investigated the development of the pigment pattern between the 1st and the 40th day after birth by taking photographs of the same individuals every 3 days.
The first step toward modern advertising came with the development of printing in the 15th and 16th centuries.
Io played a significant role in the development of astronomy in the 17th and 18th centuries.
Rapid development of the public library system occurred in the first decade of the 20th century, when the Carnegie Foundation provided building funds.
Segars was the 16th employee to join Arm and led the development of the Arm7 and Arm9, the processors in the first digital mobile phones.
