Historedia
Person

Graham

Events
2
Episodes
7
Years
1822–1888

Every event in Historedia whose sources name Graham, with the role they cite and all of that event’s episodes. This is not a biography, and mentions are grouped by name, so two people with the same name can share this page.

Events and episodes

  1. Valparaíso earthquake and tsunami

    1822

    Role: Observer whose journal accounts speculated on earthquake-driven land elevation; identity unresolved in supplied sources

    1. Date unknown · UnspecifiedCoastal Uplift Speculation

      In her journal accounts, Graham speculated that repeated earthquakes could be responsible for the general elevation of land and the building of mountains.

    2. 19 November 1822 · ValparaísoEarthquake Occurrence

      A violent earthquake struck Valparaíso at 10:30 pm on November 19, 1822, leaving the city in ruins.

    3. 19 November 1822 · Chilean coastTsunami Generation

      The earthquake triggered a moderate tsunami measuring up to 12 feet along the Chilean coast.

  2. Sikkim Expedition begins against Tibetan incursion

    1887–1888

    Role: British Commander

    1. 1887 · LingtuTibetan Occupation of Lingtu

      Tibetan forces crossed the Jelep La pass and occupied Lingtu, defying British expectations of retreat.

    2. 1888 · Lingtu, Gantok, TumlongBritish Military Preparation

      The British prepared for a military solution to expel Tibetans from Lingtu and secure key areas.

    3. 1888 · Tuko La, Nim La, GangtokCapture of Tuko La

      British columns penetrated defences and captured the Tuko La pass, forcing Tibetan retreat.

    4. 21-22 May 1888 · GnathangEngagement at Gnathang

      Tibetan forces attacked British defences at Gnathang, resulting in casualties and a retreat.

Sources

  1. 1822 Valparaíso earthquake Wikipedia, revision of 2026-08-09
  2. Sikkim expedition Wikipedia, revision of 2026-08-22