Uploaded April 2023 | Updated September 2026, 2 weeks ago

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Preservation of Knowledge is a unique tech for the Abbasid Dynasty. You can research it after you construct the Culture Wing, but is it worth it? Let's find out!

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0:00 - Intro
0:11 - Preservation of Knowledge Stats
0:32 - Is it Worth it to Research?
0:41 - Super-Scientific Rationalization
0:51 - Spearman Best Unit in the Game
0:58 - Mo, the Spearman.
1:03 - Mo's First Talent
1:08 - Mo's Second Talent
1:11 - Mo's Third Talent
1:14 - Mo's Fourth Talent
1:19 - Focus on What Matters
1:29 - Conclusion
1:41 - Just In Case
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Tags: #AgeofEmpires4 #Abbasids #AoE4
rts, age of empires 4, gameplay, abbasid dynasty