Indianapolis Motor Speedway — founded 1909
Indianapolis Motor Speedway traces its beginnings to 1909, part of the Modern Century (20th century) — a founding moment that shaped everything that came after.
Context
Modern Century — World wars, moon shots, and cultural upheaval. That's roughly 61 years ago — still within living memory for many. Around the same time, the world was also seeing 1st regular radio broadcast in US (1909) and Henry M. Leland sells Cadillac to General Motors for $4.5 million (1909).
Why it matters
The founding of Indianapolis Motor Speedway in 1909 created something durable — a place, institution, or movement that outlasted its era and became a reference point for what came next.
Did you know?
Just 0 years after, 1st regular radio broadcast in US (1909) was also making headlines — a reminder how much history can compress into a single decade.
Era
Modern Century
World wars, moon shots, and cultural upheaval.
Category
Places
Places are the cities, monuments, and landmarks whose stones and streets carry centuries of memory.
Contemporary events
What else was happening in the world around this time.
Sources & further reading7 verified references · tap to open
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.
- Timeline question bank — © the game's original author, used with permission.
- Era framework based on Wikipedia's Human history overview, CC BY-SA 4.0.
Wikipedia
Community-maintained encyclopedia entry with citations.
Encyclopædia Britannica
Editorially reviewed reference articles.
Library of Congress
Primary sources, photographs, and archival records.
National Archives
Original U.S. government documents and records.
Smithsonian
Museum collections and curator-written explainers.
BBC History
Long-form explainers and documentaries.
History.com
Timelines and topic overviews from HISTORY.
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 1909?
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Henry M. Leland sells Cadillac to General Motors for $4.5 million