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Wellsprings
On this day in history

May 27

JewishChristianBuddhistHinduIslamicScience
Observed on May 27, 2026
  • Eid al-AdhaIslamic

    Eid al-Adha, the Festival of Sacrifice, at the culmination of the Hajj pilgrimage.

    Follows the lunar Hijri calendar; the observed date can vary by a day with the moon sighting.

  1. 1096 CEJewish

    During the First Crusade the Jewish community of Mainz was destroyed in the Rhineland massacres remembered in Ashkenazi tradition as the Gezerot Tatnu.

  2. 1564 CEChristian · died

    John Calvin, the reformer and theologian whose 'Institutes' shaped Reformed Christianity, died at Geneva.

  3. 1906 CEBuddhist · born

    Buddhadasa Bhikkhu, the influential Thai monk and reformer who founded the forest monastery Suan Mokkh, was born in Chaiya, southern Thailand, in 1906.

  4. 1907 CEHindu · born

    Rabindranath Bhattacharya, later the Kriya Yoga master Paramahamsa Hariharananda, was born in Nadia district, Bengal.

  5. 1986 CEIslamic · died

    The Palestinian-American scholar of religion Ismail Raji al-Faruqi, known for his work on Islamic thought and interfaith study, was killed at his home in Pennsylvania.

  6. 1897 CEScience · born

    John Cockcroft was born in Todmorden, England. With Ernest Walton he first split the atomic nucleus using an accelerator in 1932, work recognized with the 1951 Nobel Prize in Physics.

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  7. 1907 CEScience · born

    Rachel Carson was born near Springdale, Pennsylvania. A marine biologist and writer, her sea trilogy and later Silent Spring drew wide attention to the natural world and its stewardship.