The Moribund Institute
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900 History

[May 18, 2026]
THE_MORIBUND_INSTITUTE // DEWEY CLASS 900

900 – History, Geography & Biography

The Institute wing for time, place, memory, peoples, civilizations, maps, biography, travel, historical events, empires, nations, regional studies, old records, vanished borders, and the endless human habit of leaving ruins, receipts, myths, maps, monuments, and suspiciously confident timelines.

Shelves in 900

900 History The main shelf for history, geography, biography, civilizations, and places. History Events, periods, movements, chronologies, causes, consequences, and historical interpretation. Geography Places, maps, regions, borders, landscapes, routes, countries, and spatial context. Biography Lives, figures, rulers, thinkers, artists, saints, villains, oddballs, and historical persons. Civilizations Societies, empires, cultures, institutions, cities, dynasties, and long-running human systems. Ancient History Early civilizations, empires, texts, archaeology, mythology-adjacent history, and deep antiquity. Medieval History Kingdoms, churches, feudal systems, manuscripts, crusades, trade routes, and medieval worlds. Modern History Revolutions, nation-states, industrial change, modern politics, global conflicts, and modernity. World History Global patterns, exchanges, empires, migrations, wars, comparative history, and big-picture trails. African History African kingdoms, cultures, regions, diasporas, colonial history, and modern histories. American History United States history, colonial history, politics, culture, regional history, and civic memory. European History Europe’s kingdoms, empires, wars, revolutions, religious conflicts, and cultural movements. Asian History East, South, Central, and Southeast Asian histories, civilizations, states, and cultures. World War II The war, its causes, campaigns, people, aftermath, memory, media, and historical debates. Nanonations Tiny states, micronations, disputed polities, island oddities, and nanonationitis flare-ups. Places Locations, landmarks, cities, regions, islands, borders, and geographic curiosities.

Use this class when the post is mainly about the past, places, people, civilizations, historical memory, maps, nations, or biography. If the post is mostly about religion in history, also add 200 Religion. If it is about art history, also add 700 Arts. If it is about literary history, also add 800 Literature.

Suggested Lesson Types

Timelines Chronological lessons that arrange events, rulers, movements, inventions, and causes. Map Studies Geography lessons using regions, routes, borders, capitals, terrain, and spatial comparison. Biography Studies Focused lessons on people, lives, influence, choices, historical context, and legacy. Primary Source Notes Documents, letters, speeches, inscriptions, records, images, and direct historical evidence. Historical Context Background lessons explaining the conditions around an event, text, figure, or movement. History Wiki Walks Guided trails through Wikipedia, Wikisource, maps, references, and related historical pages. Interactive Exercises Tap-to-build, flashcards, timeline checks, map quizzes, reading checks, and lesson embeds.

Example 900 Lesson Embed

A history lesson can pair a short explanation with a sentence-building, chronology, geography, or source-reading exercise.

This is useful for historical vocabulary, timelines, source interpretation, geography terms, biography checks, and wiki-walking through places or periods. 
<div class="mor-tap-to-build" data-questions='[
  {
    "prompt": "Put the history sentence in order:",
    "phrase": "Primary sources come from the time being studied.",
    "answer": ["Primary", "sources", "come", "from", "the", "time", "being", "studied."],
    "distractors": ["river", "machine", "purple", "forgot"]
  },
  {
    "prompt": "Build the geography sentence:",
    "phrase": "Geography studies places and their relationships.",
    "answer": ["Geography", "studies", "places", "and", "their", "relationships."],
    "distractors": ["stone", "quietly", "ancient", "under"]
  }
]'></div>

<script src="https://mor-blogger-embeds.pages.dev/tap-to-build/tap-to-build.js"></script>

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