Small pox. Killed 50% or more of Amerindians population in Mexico and Central America
Oversight and public education are examples of "implied" Congressional functions, since these actions are not specifically mentioned in the Constitution, but are within Congresses' umbrella of power.
Narmer was the first egyptian pharaoh
The selection of delegates and electorates lies within the competence of the party doing the selection, fairness of the process is secured by law and the constitution and overseen by the appropriate level law officials. There is no mention of a one, unified entity that would watch over the whole process.