Answer: I don't think anything is wrong with that, all of them are right.
Explanation:
Millennium- 1,000 years
Empire- A large group of states or countries usually ruled by one powerful leader
Dynasty- A line of rulers where the power is passed down from to son across generations
Kingdom- A country, state, or territory ruled by a king or queen
The cities of Chichen Itza and Tenochtitlan reveal that the civilization that founded them have advanced knowledge in architecture, mathematics, physics, chemistry and astronomy at the very least.
To create such proportional and seemless structures, civilization must have advanced mathematics in practice. And for those structures to stand not only the test of time but also the forces of nature requires specialized knowledge in both chemistry and physics. This leads to the conclusion that the people who planned the structures are not only priests or shamans but also engineers who like their modern counterparts are well versed in the sciences.
In his seminal and award winning book, gathering the storm, Churchill postulates that he had warned that appeasement provided an ample opportunity for Hitler to re-arm. He thus called a fast rearmament of the British RAF.