Which work publicized the concept of natural rights later found in the declaration of independence.

John Locke's Natural Rights publication in 1689 I think.

"all individuals are equal in the sense that they are born with certain inalienable  natural rights"  is pretty much verbatim from his publication.

crop rotation kepy different plants in the soil instead of once constintly. when switching out plants you have different nutrients being absorbed at different speeds and different roots growing differently therfore the spoil and water flow have to adapt and carry fresh nutrients to carry the constant changes that were going on in the soil.

it took two men to wrestle rome back from chaos and turn a republic into an empire. in the first century bc, rome was a republic. power lay in the hands of the senate, elected by roman citizens. but the senators were fighting for power between themselves.