I have to add the powers that be were manufacturing depressions in the 1900s (that first decade), 1930s, and also in the 2020s as in right now. Those are three main times in the last 120 years or so. I'm not sure too much regarding patterns before the 1900s.
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But following each of those three decades I mentioned minus the last one we got World War I, World War II, and there is a possibility of World War III happening in the 2020s or 2030s at the earliest. There was a bit of a depression or recession in the 1900s which followed with that first war to end all wars in the 1910s. After The Great Depression of the 1930s came WWII in the 1930s and 1940s. Now, in the 2020s, there are major depressions happening around the world. People have no food. People are starving to death. The bad globalists and other weird rich people and other random power hungry people around the world do things to get us humans to fight each other as opposed to fighting them. 
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They want people around the world to tear down governments so they can come in and take over the world. They are tricking us into hating government so that we destroy our own governments. It's a trap. After that, they can pretend to be our saviors and give us a one world government that can save us. But they want us to do the hard work of destroying ourselves and our countries first so that we become weak and desperate to accept their tyranny and control and everything. It's a trap. History has patterns. But we do NOT have to repeat this coming pattern coming probably before the 2050s. They want most humans to die before 2030. Our destiny depends on the choices many of us make right now and each day for the next century or so. In Canada, millions of people went to the capital to protest Covid Vaccines which are killing people. That is good. We have to keep on doing things like that and expose the tyranny.