When revolution struck the Middle East during the Arab Spring in late 2010, it seemed clear that the seeds of discontent were spreading from one country to another, linked by common frustrations and similar goals.

Now, simultaneous uprisings in Ukraine, Venezuela and Thailand are raising questions about whether revolutions can be contagious, even when countries are separated by continents and oceans.

For now, experts said, current revolts in disparate countries seem mostly unrelated, though they do share similar tactics. Still, it wouldn’t be unprecedented for revolutions to spark unrest from afar.

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Ever since literacy became commonplace and international lines of communication opened up hundreds of years ago, people have been sharing ideas and gaining inspiration from the struggles of others.

“Revolutions can absolutely be contagious,” said Colin Beck, a sociologist at Pomona College in Claremont, Calif. “In the modern world, most revolutions happen as part of revolutionary waves. It’s been an increasing trend in the last 200 to 300 years.”

There are two prerequisites for a revolt to spread beyond its borders, Beck said. First, there needs to be success. “No one is going to imitate a failed revolution,” he said.

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Potential dissenters also need to have a sense that an ongoing or recent revolt is relevant to what’s happening where they live. When societies are similar, activists can more easily become emboldened and confident that they might succeed, too.

There are many historical examples of uprisings catching on in non-adjacent regions.

The French Revolution, for instance, began just a few years after the American Revolution ended in 1783. By that point, France’s rising class of non-aristocratic, anti-British property owners was already fed up with the excesses of the monarchy, said John McManus, a military historian at Missouri University of Science and Technology in Rolla.

An anti-government demonstrator builds a barricade with burning tires on Feb. 21, 2014 at the Independent square in Kiev.Getty

Inspired by struggles for independence in the United States during a time when newspapers began to allow the exchange of ideas across the Atlantic, the French staged a revolt of their own.

“There was a lot of technological change with the Industrial Revolution,” McManus said. “It seems glacial in the context of our time. But in the context of their time, it was cutting-edge that the average person could read and transmit ideas.”

In turn, the French Revolution inspired revolt in Haiti, where slaves used the ideas of the French to justify their rebellion.

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A more recent revolutionary wave occurred in the early 2000s against corrupt governments, beginning in Georgia, Ukraine and Kyrgyzstan, among other countries. Called the Color Revolutions, protests then spread to Kuwait, Iran, China and beyond.

One reason that revolutions are so ripe for contagion is that they are based on big ideas.

“If you don’t have ideas, you’re not doing a revolution and we call it something else, like a coup or power-grab,” Beck said. “Ideas have a universal component that people can use to derive inspiration from elsewhere.”

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Revolutionary waves have always been fueled by the latest communication technologies, from the printing press to the telegraph to Twitter, Beck said. Because communication can happen so much more rapidly now than it used to, waves seem to be spreading more quickly, too.

While it once took years for one revolution to inspire another, it can now take months or less. Success tends to decline as governments catch on to new lines of communication and get one step ahead of protesters.

When it comes to uprisings going on now in Venezuala, Ukraine and Thailand, each revolt has its own unique and unconnected history and details, experts said. But all share in common similar strategies, including mass protests and occupation of public spaces. Those are tactics that could easily spread online -- sparking yet more rebellion anywhere in the world that dissatisfaction may be brewing.