As with Evony Age 1, the Academy is THE most important building in your city. The academy governs as well as facilitates the city wide technological upgrades. technologies once researched need not researched for each city since they are applicable to your account and not a particular city.
However, it is important to note that individual cities must meet the minimum level required for level 1 research of the particular technology in question. The only exception to this rule is Construction Technology which is applicable to all of your cities when have an academy built, regardless of their level.
The below table shows the academy level and corresponding technologies which will become available at the highest level researched previously in ANY of your cities.
|1||Agriculture, Lumbering, Military Science|
|2||Masonry, Mining, Military Tradition|
|3||Metal Casting, Informatics, Iron Working|
|4||Logistics, Compass, Archery|
|5||Horseback Riding, Construction *|