¿Cuál es el trabajo del Historiador?

Realizar investigaciones históricas para identificar, analizar e interpretar hechos del pasado: ... Presentar descubrimientos históricos a través de trabajos, libros y conferencias. Esto es de google.

Explanation:

you didn't give any answers to choose from so i can't with this but, i do know something that the mexican government would be worried about and that is the wall that donald trump is currently trying to get up.

in 550 b.c.e. cyrus the great, the leader of the persians, conquered the medes and united the iranian people under one ruler for the first time. cyrus became the first king of the persian empire and went on to establish one of the largest empires in world.