How Global Health and Wealth Has Changed Over 221 Years
At the dawn of the 19th century, global life expectancy was only 28.5 years.
Outbreaks, war, and famine would still kill millions of people at regular intervals. These issues are still stubbornly present in 21st century society, but broadly speaking, the situation around the world has vastly improved. Today, most of humanity lives in countries where the life expectancy is above the typical retirement age of 65.
At the same time, while inequality remains a hot button topic within countries, income disparity between countries is slowing beginning to narrow.
This animated visualization, created by James Eagle, tracks the evolution of health and wealth factors in countries around the world. For further exploration, Gapminder also has a fantastic interactive chart that showcases the same dataset.
The Journey to the Upper-Right Quadrant
In general terms, history has seen health practices improve and countries become increasingly wealthy–trends that are reflected in this visualization. In fact, most countries drift towards the upper-right quadrant over the 221 years covered in the dataset.
However, that path to the top-right, which indicates high levels of both life expectancy and GDP per capita, is rarely a linear journey. Here are some of the noteworthy events and milestones to watch out for while viewing the animation.
1880s: Breaking the 50-Year Barrier
In the late 19th century, Nordic countries such as Sweden and Norway already found themselves past the 50-year life expectancy mark. This was a significant milestone considering the global life expectancy was a full 20 years shorter at the time. It wasn’t until the year 1960 that the global life expectancy would catch up.
1918: The Spanish Flu and WWI
At times, a confluence of factors can impact health and wealth in countries and regions. In this case, World War I coincided with one of the deadliest pandemics in history, leading to global implications. In the animation, this is abundantly clear as the entire cluster of circles takes a nose dive for a short period of time.
1933, 1960: Communist Famines
At various points in history, human decisions can have catastrophic consequences. This was the case in the Soviet Union (1933) and the People’s Republic of China (1960), where life expectancy plummeted during famines that killed millions of people. These extreme events are easy to spot in the animation due to the large populations of the countries in question.
1960s: Oil Economies Kick into High Gear
During this time, Iran, Iraq, and Saudi Arabia all experience massive booms in wealth, and in the following decade, smaller countries such as the United Arab Emirates and Kuwait rocket to the right edge of the visualization.
In following decades, both Iran and Iraq can be seen experiencing wild fluctuations in both health and wealth as regime changes and conflict begin to destabilize the region.
1990s: AIDS in Africa
In the animation, a number of countries plummet in unison at the end of the 20th century. These are sub-Saharan African countries that were hit hard by the AIDS pandemic. At its peak in the early ’00s, the disease accounted for more than half of deaths in some countries.
1995: Breaking the 65-Year Barrier
Global life expectancy reaches retirement age. At this point in time, there is a clear divide in both health and wealth between African and South Asian countries and the rest of the world. Thankfully, that gap is would continue to narrow in coming years.
1990-2000s: China’s Economic Rise
With a population well over a billion people, it’s impossible to ignore China in any global overview. Starting from the early ’90s, China begins its march from the left to right side of the chart, highlighting the unprecedented economic growth it experienced during that time.
What the Future Holds
If current trends continue, global life expectancy is expected to surpass the 80-year mark by 2100. And, sub-Saharan Africa, which has the lowest life expectancy today, is expected to mostly close the gap, reaching 75 years of age.
Wealth is also expected to increase nearly across the board, with the biggest gains coming from places like Vietnam, Nigeria, and the Philippines. Some experts are projecting the world economy as a whole to double in size by 2050.
There are always bumps along the way, but it appears that the journey to the upper-right quadrant is still very much underway.
These Powerful Maps Show the Extremes of U.S. Population Density
The U.S. population is spread across a huge amount of land, but its distribution is far from equal. These maps are a unique look at population density
America’s 328 million people are spread across a huge amount of territory, but the population density of various regions is far from equal.
It’s no secret that cities like New York have a vastly different population density than, say, a rural county in North Dakota. Even so, this interactive map by Ben Blatt of Slate helps visualize the stark contrast between urban and rural densities in a way that might intrigue you.
How many counties does it take to equal the population of these large urban areas? Let’s find out.
New York City’s Rural Equivalent
New York City (proper) Population: 8.42 million
New York City Population density: 27,547 persons / mi²
New York City became the largest city in the U.S. back in 1781 and has long been the country’s most densely packed urban center. Today, 1 in every 38 people living in the United States resides in The Big Apple.
For the northwestern counties above to match the population of New York City, it takes a land area around the size of Mongolia. The region shown above is 645,934 mi², and runs through portions of 12 different states.
In order to match the population of the entire New York metropolitan area, which holds 18 million people and includes adjacent cities and towns in New York state, New Jersey, and Connecticut, the above equivalent area would have to be even more massive.
Los Angeles County’s Rural Equivalent
LA County Population: 10.04 million
LA County Population density: 2,100 persons / mi²
Los Angeles County is home to the 88 incorporated cities that make up the urban area of Los Angeles.
Even excluding nearby population centers such as Anaheim, San Bernadino, and Riverside (which are located in adjacent counties) it is still the most populous county in the United States, with over 10 million inhabitants.
To match this enormous scale in Middle America, it would take 298 counties covering an area of 471,941 mi².
Chicago’s Rural Equivalent
Chicago Metropolitan Area Population: 9.53 million
Chicago Metropolitan Area Population density: 1,318 persons / mi²
Next up is America’s third largest city, Chicago. For this visualization, we’re using the Chicago metropolitan area, which covers the full extent of the city’s population.
To match the scale of the population of the Windy City, we would need to add up every county in New Mexico, along with large portions of Colorado, Arizona, and Texas.
Turning the Tables?
Conversely, what if we transported the people in the country’s least densely populated counties into the middle of an urban center?
|1||Kalawao County, Hawaii||86|
|2||Loving County, Texas||169|
|3||King County, Texas||272|
|4||Kenedy County, Texas||404|
|5||Arthur County, Nebraska||463|
As it turns out, the total population of the five least populated counties is just 1,394—roughly the same amount of people that live on the average Manhattan block.
Mapped: The Top 10 Billionaire Cities
Where do the most billionaires live? For years, NYC has topped the list of billionaire cities, but 2020 marked a monumental shift.
Mapped: The Top 10 Billionaire Cities in 2020
In 2020, the world gained 493 new billionaires—that’s one every 17 hours.
For the last seven years, New York City has been home to more billionaires than any other city in the world. However, last year marked a monumental shift in the status quo.
Beijing has unseated the Big Apple, and is now home to 100 billionaires. That’s one more billionaire than the 99 living in New York City.
Today’s map uses data from Forbes to display the top 10 cities that house the most billionaires.
Where do the Most Billionaires Live?
The richest of the rich are quite concentrated in cities, but some cities seem to best suit the billionaire lifestyle. Here’s a breakdown of the top 10 billionaire capitals and the collective net worth of all the ultra wealthy that live there.
|Rank||City||Region||Number of Billionaires||Net Worth of the City's Billionaires|
|#2||New York City||🇺🇸 North America||99||$560.5B|
|#3||Hong Kong||🇨🇳 Asia||80||$448.4B|
|#9||San Fransisco||🇺🇸 North America||48||$190.0B|
Some cities have some obvious billionaires that come to mind. New York’s richest person and former mayor, Michael Bloomberg, is worth $59 billion. Beijing’s richest billionaire is the founder of TikTok (among other things), Zhang Yiming with a net worth of $35.6 billion.
In terms of the locations themselves, London, New York, and San Francisco are the only Western cities to make the list. Though New York was ousted from the top position last year, altogether the city’s billionaires are still worth more than Beijing’s.
One new city to make the top 10 list of billionaire cities was Hangzhou, the home of Jack Ma. It booted out Singapore from the 10th spot.
East Meets West
More than half of the top 10 cities are located in Asia, providing evidence of the shift eastwards when it comes to seats of wealth. Five of the six Asian cities listed are all in China.
What’s helped lead to this?
The country has seen an e-commerce boom, not in the least thanks to the pandemic. Additionally, the efficient handling of COVID-19 has allowed the economy to get back on track much more quickly than other countries. According to the BBC, 50% of China’s new billionaires have made their wealth either through tech or manufacturing.
Four of the Chinese cities on the list also had the biggest billionaire growth in 2020. Each of them gained more than 10 net new billionaires:
- 🇨🇳 Hangzhou: 21
- 🇨🇳 Shanghai: 18
- 🇨🇳 Shenzhen: 24
- 🇨🇳 Beijing: 33
The only other city to gain more than 10 new billionaires in 2020 was San Francisco with 11.
Now sitting at 698 billionaires, China is coming up on the 724 held by the United States. Beijing overtaking NYC could be the beginning of a larger tipping point.
Asia-Pacific’s collective 1,149 billionaires are worth $4.7 trillion, while U.S. billionaires are worth $4.4 trillion in total wealth.
Overall, it looks like the wealth tides may be turning as China continues to progress economically and more billionaires become based in the East over the West.
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