On April 25
On April 25, the Human Saga records one pivotal event: Discovery of the double-helix structure of DNA (1953).
On this day
On 25 April 1953 the journal Nature published a trio of papers describing the molecular structure of deoxyribonucleic acid (DNA).
Also this week in history (Apr 22 – Apr 28)
On 28 April 224 CE Ardashir I, a ruler from Persis (Fars) descended from the line of Sasan, defeated and killed Artabanus IV, the last Arsacid king of kings, on the plain of Hormozdgan.
On 27 April 1994 South Africa held its first fully democratic election, the first in which citizens of all races could vote, ending the apartheid system of institutionalised racial segregation that had governed the country since 1948.
On 22 April 1500 a Portuguese fleet commanded by Pedro Álvares Cabral, bound for India along Vasco da Gama's route, made landfall on the coast of present-day Bahia in South America.
On 27 April 1848 the provisional government of the French Second Republic issued a decree abolishing slavery in all French colonies, freeing roughly 250,000 enslaved people in the Caribbean, Indian Ocean and elsewhere.
Beginning on 24 April 1915, when Ottoman authorities arrested and deported hundreds of Armenian intellectuals and community leaders in Constantinople, the Ottoman government carried out the systematic destruction of its Armenian population…
On 26 April 1956, the SS Ideal X, a converted World War II T-2 oil tanker owned by Malcom McLean's Pan-Atlantic Steamship Company, departed Port Newark, New Jersey, carrying 58 standardised 35-foot truck-trailer containers alongside a load…
After militants killed 26 tourists, mostly Hindu civilians, in Pahalgam in Indian-administered Kashmir on 22 April 2025, India blamed Pakistan-based groups and launched missile and air strikes inside Pakistan on 7 May under the codename…
The first Earth Day was held on 22 April 1970, conceived by US Senator Gaylord Nelson of Wisconsin and coordinated nationally with organiser Denis Hayes.