Making Sense Of The World, One Map At A Time
In modern times, the term seven seas is synonymous with the seven oceans of the world: Arctic, North Atlantic, South Atlantic, North Pacific, South Pacific, Indian, and Southern oceans.
However, that has not always been the case.
The 3 maps below created by reddit user DwizKhalifa show how the term seven seas has been used by different people at different times.
Countries from which no data are available are plotted in grey. The figure was elaborated using R software (R Core Team, Vienna, Austria) to represent open access data which have been previously standardized to age and sex.
It comes report entitled: Experimental Models to Study Autism Spectrum Disorders: hiPSCs, Rodents and Zebrafish by Alba Pensado-López, Sara Veiga-Rúa, Ángel Carracedo, Catarina Allegue and Laura Sánchez.
Here’s a brief summary of it, but you can read the whole thing for free online here.
All the maps featured here come from the article: Cross-Gender Social Ties Around the World By Michael Bailey, Drew Johnston, Theresa Kuchler, Ayush Kumar, Johannes Stroebel and its annex.
Here’s a summary of the data used:
The map above only shows domestic flight routes within countries.
Large rich countries like the United States and China have loads whereas smaller countries have few to none.
But perhaps most striking is how few routes there are in Africa.
The map above shows the top 10 countries with the most islands. Sweden claims to have the most islands at 267,570 but only 984 of them are inhabited.
The data comes from WorldPopulationReview.com and you can see the list below:
The map above looks at whether or not the majority of your country’s population is born in the 20th or 21st centuries as of January 1st, 2025.
The data is based on Median age data from the CIA Worldfact book.
Currently 56 countries & territories have a majority of people born this century, while 173 still have more people born in the 20th century.
You can see the full data, and when a country can expect to become majority born in the 21st century below:
The video above is Ollie Bye’s amazing tour de force video of The History of the World: Every Year.
As he describes it: “Since 200,000 BCE, humanity has spread around globe and enacted huge change upon the planet. This video shows every year of that story, right from the beginning.”
I had fun playing around with it and sped it up by 18x it’s normal speed so you can watch the whole thing in 60 seconds (see below).
However, if you actually want to see anything you’re better off watching the full version above.
The map above shows the share of bankruptcies in each country that can be traced back to either direct medical costs and/or the costs related to lost income from health related problems.
Here’s more about the sources of the stats for each country:
It is based claim of historian Stuart Laycock from his book All the Countries We’ve Ever Invaded: And the Few We Never Got Round To, who states that: “Out of 193 countries that are currently UN member states, we’ve invaded or fought conflicts in the territory of 171.”
This means that only 22 countries have never been invaded by Britain, which Statista lists as:
And surprisingly the US actually has a higher total number of Jews than Israel does (although much smaller share of the population).
From the map author: