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Hace 2 días · In the 19th century the empire was internally restive and externally threatened by western powers. The defeat by the British Empire in the First Opium War (1840) led to the Treaty of Nanking (1842), under which Hong Kong was ceded to Britain and importation of opium (produced by British Empire territories) was allowed.
Hace 3 días · 2nd century BC: Paper in Han dynasty China; 206 BC: Compass in Han dynasty China; Early 2nd century BC: Astrolabe invented by Apollonius of Perga. 1st century BC. 1st century BC: Segmental arch bridge (e.g. Pont-Saint-Martin or Ponte San Lorenzo) in Italy, Roman Republic; 1st century BC: News bulletin during the reign of Julius Caesar.
Hace 4 días · The 19th century was an era of rapidly accelerating scientific discovery and invention, with significant developments in the fields of mathematics, physics, chemistry, biology, electricity, and metallurgy that laid the groundwork for the technological advances of the 20th century.
Hace 3 días · The Execration Texts (c. 19th century BC), which refer to a city called rwš3lmm, variously transcribed as Rušalimum/Urušalimum/Rôsh-ramen and the Amarna letters (c. 14th century BC) may be the earliest mention of the city. Nadav Na'aman argues its fortification as the centre of a kingdom dates to around the 18th century BC.
Hace 4 días · 19th century Carl Friedrich Gauss. Throughout the 19th century mathematics became increasingly abstract. Carl Friedrich Gauss (1777–1855) epitomizes this trend. [citation needed] He did revolutionary work on functions of complex variables, in geometry, and on the convergence of series, leaving aside his many contributions to science.
Hace 1 día · It flourished under the patronage of the Ptolemaic dynasty and functioned as a major center of scholarship from its construction in the 3rd century BC until the Roman conquest of Egypt in 30 BC. The library was conceived and opened either during the reign of Ptolemy I Soter (323–283 BC) or during the reign of his son Ptolemy II (283–246 BC). [19]
Hace 1 día · Eritrea Ethiopia. The Ethiopian Empire, [a] also formerly known by the exonym Abyssinia, or simply known as Ethiopia, [b] was a sovereign state [16] that historically encompasses the geographical area of present-day Ethiopia and Eritrea from the establishment of the Solomonic dynasty by Yekuno Amlak approximately in 1270 until the 1974 coup d ...
