FOE: Compare Botanical Rotunda vs Winter Pyramid Forge Of Empires special buildings

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Bronze_Age	5%	410	45.56
Iron_Age	5%	590	65.56
Early_Middle_Ages	5%	660	73.33
High_Middle_Ages	6%	710	78.89
Late_Middle_Ages	6%	770	85.56
Colonial_Age	6%	880	97.78
Industrial_Age	7%	960	106.67
Progressive_Era	7%	1050	116.67
Modern_Era	7%	1120	124.44
Postmodern_Era	8%	1250	138.89
Contemporary_Era	8%	1360	151.11
Tomorrow_Era	8%	1650	183.33
Future_Era	9%	1980	220.00
Key: - Increase in offensive army (attack boost) - Increase happiness / - Happiness per square

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Bronze_Age	290	32.22
Iron_Age	440	48.89
Early_Middle_Ages	480	53.33
High_Middle_Ages	540	60.00
Late_Middle_Ages	600	66.67
Colonial_Age	710	78.89
Industrial_Age	800	88.89
Progressive_Era	870	96.67
Modern_Era	940	104.44
Postmodern_Era	980	108.89
Contemporary_Era	1130	125.56
Tomorrow_Era	1380	153.33
Future_Era	1650	183.33
Key: - Increase happiness / - Happiness per square