Timelines

This Spiral Timeline Shows the History of Life on Earth

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The Earth has evolved throughout billions of years to become the ground we walk on today. Since the earliest start of organic material 3 billion years ago, this spiral timeline, created by the United States Geological Survey (USGS), charts how life has evolved through different periods of time.

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The Precambrian period is known by scientists as the earliest part of Earth’s history. During this time, continents began to form and an atmosphere that could harbor life. Early multi-celled creatures developed like worms and jellyfish. You can see in the visualization how life began to really start to flourish from the Precambrian into the Cambrian period which lasted about 55.6 million years. It is also the first time that the first vertebrates, fish, appeared in fossils.

Next came the Ordovician period. This period lasted for about 45 million years and saw modern sea life start to form. Next came one of the shortest periods in terms of evolution, the Silurian Period which only lasted about 28 million years. During this time a warm climate and high sea level allowed coral reefs and sponges to thrive. This spiral graph shows the next periods of life from the Devonian period, Mississippian period, Pennsylvanian period, Permian period, Triassic period, and Jurassic period. This may be one of the most familiar periods because everyone knows and loves the dinosaurs. What you may not know is that dinosaurs actually made a comeback during this period after they nearly went extinct at the end of the Triassic period. The Jurassic period also saw the development of oysters, crabs, lobsters, crocodiles, sharks, and bony fish. This graphic brings us all the way up to the Holocene Epoch period which is the most current period in Earth’s history.

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Timelines

Every Song Streamed More Than 1 Billion Times on Spotify, Visualized

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Today’s stunning visualization comes from Visual Capitalist in celebration of the Spotify’s Billions Club! They have created a captivating chart showcasing every song on Spotify that has reached over one billion streams. With over 300+ songs, that is a tremendous amount of information, but they have executed it beautifully. The color scheme is immaculate and it flows with a graceful chaos.

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I appreciate how they organized it by decade – this celebrates the legendary songs that have been able to transcend generations, such as Queen’s “Don’t Stop Me Now” and “Bohemian Rhapsody”, Nirvana’s “Smells Like Teen Spirit”, and “September” by Earth, Wind and Fire. “Dream” by Fleetwood Mac also earned a place in the Billion Club – I wonder if that was sparked in part by the viral phenomenon of Nathan Apodaca cruising on his skateboard with a bottle of Ocean Spray to the classic 70s tune? The newer songs that have reached one billion are impressive in their own right – they catapulted to cult status in record time! “Heat Waves” by Glass Animals, “Blinding Lights” by the Weekend, “Dynamite” by BTS and “As It Was” by Harry Styles are particular favorites of mine. In fact, “As It Was” is currently the only 2022 song in the Billions Club! I also enjoyed the “Fastest Growing Followings” section tucked into the bottom like a little Easter egg – as a proud member of Army, I’m thrilled to see Jungkook and BTS are among the top 5. What is your favorite song in the Billions Club? Sound off in the comments below!

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Timelines

The Oldest Logos That Are Still in Use Today

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Logos are powerful – they convey the entire essence and history of a brand within a single image. It is truly incredible to imagine how a designer can shape the entire legacy of a brand with their creations! While some company logos undergo immense transformations with the changing times, some stay true to their roots, maintaining imagery that resonates for generations. At Chartistry, we love learning about the history of design and marketing, so we were thrilled to discover this chart by ImageRelay. It explores the oldest logos that still exist today, dating all the way back to 1366.

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It is fascinating to see how many of the logos underwent style changes but still maintained distinctive core elements – I love a brand that stays true to its story! So the oldest logo that still exists today belongs to Stella Artois, a Belgium beer company. It began as just the horn, but now sports an elegant banner. What is the horn on Stella Artois? The horn represents the Den Hoorn brewery in Leuven, Belgium, where Stella Artois traces its origins. In 1366, Stella Artois was a special brew given by the brewery as a holiday gift to the people of Leuven. The name “Stella”, which means “star” in Latin, pays homage to that special occasion. The name “Artois” honors the De Hoorn Bew Master Sebastian Artois. Learning about the history of logos can be so fun, especially when they have protected the very elements that have defined the brand from the beginning.

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Charts

Chart Shows Inflation is Outpacing Teacher Salaries (1990-2022)

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Schools in the US are facing a lot of problems and one of the biggest is how they treat their teachers. If you have ever been on the r/Teachers subreddit then you know exactly what I am talking about. The subreddit is becoming more and more filled with complaints about teaching. The complaints range from disinterested kids and unruly parents to administrators that seem to care about state-sponsored standardized test scores more than anything else.  You would think that with all the teaching shortages and the upheaval created by the COVID-19 pandemic, teachers would be seeing an increase in salaries, but this graph shows that new teachers today are actually earning 11% less than their peers from 30 years ago.

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With inflation in mind a starting teachers salary today should be around $46,762 but today they are only making around $41,780 on average. Looking at the graph you can see that since 1990 the salary with inflation and the actual starting salary have been pretty close to one another until you get to 2022 where you see such a large difference. If things don’t change soon, students will continue to suffer. Students are already considered to be behind due to disruptions from the pandemic. Good teachers are needed now more than ever, so let’s pay them what they deserve.

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