Is Mirage the First True Block?

i looked back through some of the guard files, and like, we come a long way come along. mirage really was a big stepping up of a lot of technology behind the scenes. i think theyu eliances wasn't made to be part of ice age, just on te audience understand. We wizards did that. The designers had no plan for that to be true. But mirage is the first block a ido thes thing i call the ages of magic. And it's the second age to me,. i cause mirage introduce blocks, introduce limited and n miragereally was a big step up of a much-needed technological leap in Magic.