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Merrick Chance'

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Jun 28, 2007
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So I'm playing a game, and, with my large middle class, I've been coasting along at a very swift level of tech-getting, with massive gains in everything except for army (which I traded for), navy (which I don't care about), and cultural (which I resorted to using once I hit the 'ceiling)

My point is that, when I got all the lvl 4 techs in 1870, and all the lvl 5 techs in the 1910's (I noticed that I hit the roaring 20's events in the 00's), I stopped being able to research them. Is there a ceiling to the techs I can research? Because I don't want to have to research the 1840's Naval techs, being that its 1915