In what ways did the diffusion of agriculture and biological pathogens impact the societies that interacted along the Afro-Eurasian trade routes?

“destroyers for bases agreement in the destroyers for bases agreement between the united states and the united kingdom on september 2, 1940, fifty caldwell , wickes, and clemson class us navy destroyers were transferred to the toyalbnavy from the united states navy in exchange for land rights on british possessions.” i hope this you .