Timeline
Events · 1845 · 1750 – 1900

Newspaper editor John O'Sullivan coins the term "manifest destiny" (1845)

Newspaper editor John O'Sullivan coins the term "manifest destiny" took place in 1845, during the Industrial Age (19th century) — a moment that historians still return to for what it changed and what it revealed about its time.

Year

1845

Century

19th century

Era

Industrial Age

Category

Events

Age today

125 yrs ago

Context

Industrial Age — Steam, revolutions, and the modern world takes shape. That's about 125 years ago, roughly 1 centuries back. Around the same time, the world was also seeing Florida (1845) and Texas (1845).

Why it matters

Newspaper editor John O'Sullivan coins the term "manifest destiny" is remembered because its consequences outlasted the moment — the people affected, the decisions it forced, and the way it reset the story of what came next.

Did you know?

Just 0 years after, Florida (1845) was also making headlines — a reminder how much history can compress into a single decade.

Era

Industrial Age

Steam, revolutions, and the modern world takes shape.

Category

Events

Events tell the story of moments that reshaped daily life — disasters, revolutions, discoveries, and turning points that split history into before and after.

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turning pointaftermathchronologycause & effect

Contemporary events

What else was happening in the world around this time.

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About this lesson. Overview, context, and “Why it matters” are generated summaries written for study and gameplay. Dates and category placement come from the Timeline question bank[1]; era descriptions are adapted from standard historical periodisation[2]. For primary sources and in-depth reading, use the references below.

  1. Timeline question bank — © the game's original author, used with permission.
  2. Era framework based on Wikipedia's Human history overview, CC BY-SA 4.0.

    Educational content notice

    Lessons are for general historical education, not professional advice. Some entries touch on wars, violence, or other sensitive events — appropriate for ages 9+. External links open in your browser and are not controlled by Timeline.

    Quick check

    Which of these happened in 1845?

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