Technology
This Paper Map Shows the Extent of the Entire Internet in 1973
This Map Shows the Extent of the Entire Internet in 1973
Before the modern internet, there was ARPANET.
ARPANET was the first internet-like network, and it was developed to allow multiple computers to share data across vast geographical distances. Interestingly, the researchers that worked on ARPANET are credited with developing many of the communication protocols that the internet still uses today.
Today’s map comes from David Newbury, who shared a keepsake from his father’s time as a computer science business manager at Carnegie Mellon University in the 1970s. We added a legend to help explain the symbols on the map.
A Brief History of ARPANET
ARPANET was funded in the late 1960s by a branch of the U.S. Military called The Advanced Research Projects Agency (ARPA), with the original purpose being to allow researchers at different universities to use their limited computing resources more efficiently.
Before ARPANET, if a researcher at Harvard wanted to access a database at Stanford, they had to travel there and use it in person. ARPANET was used to test out a new communication technology known as packet-switching, which broke up data into smaller “packets” and allowed various computers on the network to access the data.
With ARPANET researchers could:
- Login to another computer miles away
- Transfer and save files across the network
- Send emails from one person to several others
On the map above, you can see the network only had computers in the United States, but later that same year, a satellite link connected the ARPANET to Norway, creating the beginnings of a global network.
A Network of Networks
In 1983, ARPANET adopted the TCP/IP protocol standards which paved the way for a “network of networks”, and the internet was born. Several years later, ARPANET would be decommissioned and the new internet would begin to flourish.
Below you can see what the early internet looked like in 1984:
A Big Jump
These maps take us back to a simpler time when social networks, mobile phones, and unlimited access to the world’s information did not yet exist. Even 12 years after the first message was transmitted on the ARPANET, there were still only 213 computers on the network.
Fast forward a few decades later and the change in scale is mind-boggling – the modern internet has 1.94 billion websites and 4.1 billion internet users globally, resembling a digital universe.
One can only imagine how quaint the ARPANET will look a few more decades from now.
An earlier version of this article said the ARPANET was first connected internationally to the United Kingdom, but in fact, it was with Norway.
Markets
Charted: What are Retail Investors Interested in Buying in 2023?
What key themes and strategies are retail investors looking at for the rest of 2023? Preview: AI is a popular choice.

Charted: Retail Investors’ Top Picks for 2023
U.S. retail investors, enticed by a brief pause in the interest rate cycle, came roaring back in the early summer. But what are their investment priorities for the second half of 2023?
We visualized the data from Public’s 2023 Retail Investor Report, which surveyed 1,005 retail investors on their platform, asking “which investment strategy or themes are you interested in as part of your overall investment strategy?”
Survey respondents ticked all the options that applied to them, thus their response percentages do not sum to 100%.
Where Are Retail Investors Putting Their Money?
By far the most popular strategy for retail investors is dividend investing with 50% of the respondents selecting it as something they’re interested in.
Dividends can help supplement incomes and come with tax benefits (especially for lower income investors or if the dividend is paid out into a tax-deferred account), and can be a popular choice during more inflationary times.
Investment Strategy | Percent of Respondents |
---|---|
Dividend Investing | 50% |
Artificial Intelligence | 36% |
Total Stock Market Index | 36% |
Renewable Energy | 33% |
Big Tech | 31% |
Treasuries (T-Bills) | 31% |
Electric Vehicles | 27% |
Large Cap | 26% |
Small Cap | 24% |
Emerging Markets | 23% |
Real Estate | 23% |
Gold & Precious Metals | 23% |
Mid Cap | 19% |
Inflation Protection | 13% |
Commodities | 12% |
Meanwhile, the hype around AI hasn’t faded, with 36% of the respondents saying they’d be interested in investing in the theme—including juggernaut chipmaker Nvidia. This is tied for second place with Total Stock Market Index investing.
Treasury Bills (30%) represent the safety anchoring of the portfolio but the ongoing climate crisis is also on investors’ minds with Renewable Energy (33%) and EVs (27%) scoring fairly high on the interest list.
Commodities and Inflation-Protection stocks on the other hand have fallen out of favor.
Come on Barbie, Let’s Go Party…
Another interesting takeaway pulled from the survey is how conversations about prevailing companies—or the buzz around them—are influencing trades. The platform found that public investors in Mattel increased 6.6 times after the success of the ‘Barbie’ movie.
Bud Light also saw a 1.5x increase in retail investors, despite receiving negative attention from their fans after the company did a beer promotion campaign with trans influencer Dylan Mulvaney.
Given the origin story of a large chunk of American retail investors revolves around GameStop and AMC, these insights aren’t new, but they do reveal a persisting trend.
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