“If there have been any intentional impacts for more than a few hundred years out”
There have been a number of stabilizing religious institutions which were built for exactly this purpose, both Jewish, and Christian. They intended to maintain the faiths of members and peace between them, and have been somewhere between very and incredibly successful in doing so, albeit imperfectly. Similarly, Temple-era Judaism seems to have managed a fairly stable system for several hundred years, including rebuilding the Temple after its destruction. We also have the example of Chinese dynasties and at least several European monarchies which intended to plan for centuries, and were successful in doing so.
But given the timeline of “more than a few hundred years out,” I’m not sure there are many other things which could possibly qualify. On a slightly shorter timescale, there are many, many more examples. The US government seems like one example—an intentionally built system which lasted for centuries and spawned imitators which were also largely successful. But on larger and smaller scales, we’ve seen 200+ year planning be useful in many, many cases, where it occurred.
The question of what portion of such plans worked out is a different one, and a harder one to answer, but it’s obviously a minority. I’m also unsure whether there are meaningful differentiators between cases where it did and didn’t work, but it’s a really good question, and one that I’d love to see work on.
“If there have been any intentional impacts for more than a few hundred years out”
There have been a number of stabilizing religious institutions which were built for exactly this purpose, both Jewish, and Christian. They intended to maintain the faiths of members and peace between them, and have been somewhere between very and incredibly successful in doing so, albeit imperfectly. Similarly, Temple-era Judaism seems to have managed a fairly stable system for several hundred years, including rebuilding the Temple after its destruction. We also have the example of Chinese dynasties and at least several European monarchies which intended to plan for centuries, and were successful in doing so.
But given the timeline of “more than a few hundred years out,” I’m not sure there are many other things which could possibly qualify. On a slightly shorter timescale, there are many, many more examples. The US government seems like one example—an intentionally built system which lasted for centuries and spawned imitators which were also largely successful. But on larger and smaller scales, we’ve seen 200+ year planning be useful in many, many cases, where it occurred.
The question of what portion of such plans worked out is a different one, and a harder one to answer, but it’s obviously a minority. I’m also unsure whether there are meaningful differentiators between cases where it did and didn’t work, but it’s a really good question, and one that I’d love to see work on.