Checks and balances, there really is no explanation for this it just blatantly is
Nomadic Empires contributed well in information dissemination and cultural assimilation in different parts of the world. They were able to change history because of the different stories they share and the culture that they relate to people. Aside from these, the trade of produce and services were brought to different parts of the world with ease and with the added effect of cultures and traditions.
The senate power of advice and consent does not apply to Executive orders.
