<span>Andabata.Arbelas.Bestiarius.Bustuarius.Cestus.Crupellarii.Dimachaerus.Equites.</span><span>Retiarius. A retiarus, as mentioned above, is one of the most well-know of the gladiators. ...Secutor. A secutor usually faced a retiarius in the arena. ...Murmillo. ...Hoplomachus. ...Thraex. ...Samnite. ...Provocator. ...<span>Eques.</span></span>
This is not true. Cities and Civilizations go back to the time of the Agricultural/Neolithic revolution around 7 000 years ago. For example, we have archaeological evidence for cities from this time.
However, the question depends on the interpretation of "recent": compared to the time span of evolution from Most Recent Common Ancestor with Chimpazees (5 million years ago): this is very recent.
Diving power between central and state govt.
right to bear arms
18 yr olds gain right to vote
The ancient Greeks came up with the idea of representation for the people. Although it is not like our modern ideas of equal representation for all, democracy still holds its roots in ancient Greece.