The reading room
Explore 228 entries across places and centuries. Follow an event, compare its context, and examine the evidence.
29 entries · Earliest to latest
Americas / Science
Maya societies built complex cities, writing systems, calendars, mathematical traditions and regional trade networks across Mesoamerica.
Americas / Empire
The Mexica and Inca built far-reaching political worlds with sophisticated agriculture, engineering, tribute systems, trade, religious life and knowledge traditions before Spanish invasions ruptured them in the sixteenth century.
Americas / Empire
Atlantic voyages intensified connections among Europe, Africa and the Americas and were followed by Iberian and later European invasion, settlement, missionary systems and extraction.
Americas / Faith
Revival movements transformed Protestant worship, print culture and ideas of individual conscience.
Americas / Rights
Conflict over imperial taxation and authority became rebellion and war; thirteen colonies declared independence in 1776 and secured British recognition in 1783.
Americas / Rights
Enslaved and free people in Saint-Domingue fought colonial armies and internal rivals through revolution, emancipation and the establishment of independent Haiti.
Americas / Empire
U.S. settlement expanded westward through purchase, annexation, forced removal, broken treaties, warfare and the destruction of Indigenous food systems.
Americas / Rights
This selected survey follows wars that ended most Spanish rule in mainland Latin America, while distinguishing Haiti’s earlier revolution, Brazil’s different path and surviving colonial territories.
Americas / War
War after the U.S. annexation of Texas and a disputed border ended in the Treaty of Guadalupe Hidalgo, which transferred extensive Mexican territory to the United States without making Indigenous nations parties to the settlement.
Americas / War
Eleven slaveholding states attempted secession to protect slavery. Enslaved people’s actions, wartime emancipation, Black military service, Union victory and the Thirteenth Amendment destroyed legal chattel slavery.
Americas / Rights
Emancipation opened a struggle over citizenship, political participation and freedom. Reconstruction’s gains met organised violence and the subsequent expansion of segregation.
Americas / Rights
Canadian Confederation expanded west and north through treaties, settlement and coercion; First Nations, Inuit and Métis communities negotiated, resisted and survived dispossession and residential schools.
Americas / Technology
At Kitty Hawk, the Wright brothers made four successful flights in a powered, heavier-than-air machine whose pilot could control pitch, roll and yaw.
Americas / Trade
The canal connected the Atlantic and Pacific through a system of locks and an elevated lake. Its construction also reshaped labour, public health and Panama’s relationship with the United States.
Americas / Rights
Around six million Black Americans left the U.S. South for northern, midwestern and western destinations, seeking safety, opportunity and greater freedom.
Americas / Rights
The overthrow of Porfirio Díaz opened a decade of revolutionary conflict. Electoral change, land reform and military power divided former allies.
Americas / Technology
Ford engineers and workers introduced moving lines in stages at Highland Park, combining earlier interchangeable-parts practice and division of labour to accelerate automobile assembly.
Americas / Culture
Black writers, artists and musicians made new representations of modern life. Harlem was an important centre within a movement whose connections extended internationally.
Americas / Technology
The 1947 point-contact transistor, later junction and MOS transistors, integrated circuits in the late 1950s and a commercial microprocessor in 1971 progressively concentrated electronic switching and computation.
Americas / Science
Claude Shannon’s 1948 papers formalized information, entropy, noise and channel capacity, building on earlier communication engineering and creating a mathematical limit framework for reliable signals.
Americas / Medicine
A successful 1954 kidney transplant between identical twins avoided immune rejection; tissue matching, organ preservation and immunosuppressive regimens later made transplants between genetically different people increasingly viable.
Americas / Rights
A selected phase of a much longer Black freedom struggle challenged segregation, disenfranchisement and racial violence through litigation, boycotts, direct action, community organizing and mass political mobilization.
Americas / Rights
The overthrow of Batista opened a struggle over political power and property. Cuba’s relationship with the United States deteriorated as ties with the Soviet Union strengthened.
Americas / Technology
Maiman demonstrated a working ruby laser in 1960; Kao and Hockham’s 1966 analysis identified material purity as the route to practical optical communication, and low-loss glass fiber followed in 1970.
Americas / Rights
Disabled organisers demanded implementation of civil-rights protections. The 1977 protests demonstrated the difference between passing a law and making it effective.
Americas / Rights
South American security services coordinated transnational repression. Exile could offer distance from a dictatorship without guaranteeing safety.
Americas / Technology
Polymerase chain reaction used repeated cycles and short primers to copy selected DNA sequences. The 1983 concept became a robust laboratory system through experimental teams, thermostable polymerases, automated thermal cycling and later detection methods.
Americas / Technology
At an April 1986 mathematics-education meeting in Washington, a small group of teachers picketed recommendations supporting calculator access across school grades and argued that basic number skills should come first.
Americas / Technology
Research on repeated microbial DNA and bacterial adaptive immunity preceded the 2012 demonstration that CRISPR-Cas9 could be programmed to cut selected DNA. Many laboratories then adapted CRISPR systems for cells, organisms, diagnostics and treatment research.
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