turquoise — introduced 1573
turquoise arrived in 1573, during the Renaissance & Exploration (16th century). It expanded what people could build, measure, or communicate, and quickly reshaped daily life.
Context
Renaissance & Exploration — New worlds, new science, art reborn. That's about 397 years ago, roughly 4 centuries back. Around the same time, the world was also seeing William Oughtred (1574) and William Oughtred, English mathematician (1574).
Why it matters
turquoise mattered because it changed what was possible. New tools shift habits, industries, and even how people see the world — and this one is remembered for exactly that reason.
Did you know?
Just 1 year after, William Oughtred (1574) was also making headlines — a reminder how much history can compress into a single decade.
Era
Renaissance & Exploration
New worlds, new science, art reborn.
Category
Inventions
Inventions are the tools and technologies that changed what humans could do — from wheels and printing presses to satellites and smartphones.
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 1573?
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the equal (=) sign, credited to Robert Recorde
1 yrs after · 1574
William Oughtred
1 yrs after · 1574
William Oughtred, English mathematician