15 Pivotal Decisions That Shaped World History
A Quartz article examines 15 moments where a single decision fundamentally altered the course of history. Examples include Julius Caesar crossing the Rubicon in 49 BCE, which triggered a civil war and ended the Roman Republic; and Soviet leader Mikhail Gorbachev's refusal to use force against pro-democracy protests in 1989, a choice that enabled the peaceful fall of the Berlin Wall and the dissolution of the USSR. Other pivotal decisions range from Emperor Constantine's conversion to Christianity in 312 CE to President Harry Truman's authorization of the atomic bomb in 1945. The article underscores how individual choices—whether by rulers, generals, or activists—can redirect global events, for better or worse. Each case highlights the interplay of personality, circumstance, and consequence, reminding readers that history often hinges on a single, irreversible decision.
Key facts
- Julius Caesar crossed the Rubicon in 49 BCE, triggering a civil war and ending the Roman Republic.
- Mikhail Gorbachev refused to fire on protesters in 1989, enabling the peaceful fall of the Berlin Wall.
- Emperor Constantine converted to Christianity in 312 CE, reshaping the Roman Empire.
- Harry Truman authorized the atomic bomb in 1945, ending World War II but starting the nuclear age.
- The article lists 15 such moments from ancient to modern history.
- Decisions were made by rulers, generals, and activists.
- Each decision had irreversible global consequences.
- The article was published by Quartz.
Entities
Institutions
- Quartz
Locations
- Rome
- Berlin
- Soviet Union
- United States
Sources
- Quartz —