This is…not true. Medieval Europeans were well aware that the earth is round. Knowledge of a spherical earth was widely discussed as early as the 5th c BC. This knowledge came to medieval Europe through Aristotle.
Much of the controversy in medieval Europe was about the *size* of the globe, not its shape. Columbus studied the (widely available) calculations of Eratosthenes, from approx 240 BC. Columbus ended up doing his own calculations (which were stunningly wrong).
You know @eric_schmitt it would be best if you checked your facts before posting dumb ahistorical shit online. Any school library will have this information.

• • •

Missing some Tweet in this thread? You can try to force a refresh

Keep Current with Doctor Historianess

Doctor Historianess Profile picture

Stay in touch and get notified when new unrolls are available from this author!

Read all threads

This Thread may be Removed Anytime!


Twitter may remove this content at anytime! Save it as PDF for later use!

Try unrolling a thread yourself!

how to unroll video
  1. Follow @ThreadReaderApp to mention us!

  2. From a Twitter thread mention us with a keyword "unroll"
@threadreaderapp unroll

Practice here first or read more on our help page!

More from @historianess

16 Feb
A thread about electricity deregulation and infrastructure in Texas: 1/
Dereg has been a thing there since we moved to Austin in the late 1980s. A constant push for lower electricity prices. TX is unique in that it has its own grid; the grid doesn't connect to any other states. So TX has a lot of leeway in what it decides to do. 2/
ERCOT is the state agency that "regulates" the grid and the "deregulated" "electricity market." What this means is that you can *buy* power from any number of companies, and regional power companies are responsible for maintaining the grid. 3/
Read 19 tweets

Did Thread Reader help you today?

Support us! We are indie developers!

This site is made by just two indie developers on a laptop doing marketing, support and development! Read more about the story.

Become a Premium Member ($3/month or $30/year) and get exclusive features!

Become Premium

Too expensive? Make a small donation by buying us coffee ($5) or help with server cost ($10)

Donate via Paypal Become our Patreon

Thank you for your support!

Follow Us on Twitter!