How did the black death travel from sarai to cairo

What was a common consequence if sir edwin sandys system of indentured servitude

Which russian tsar transformed thr royal residence in st. petersburg, the hermitage, into a center of culture, painting, and the performing arts

Ineed asap! ! what is the name of the system in which each branch of the u.s government can limit the actions of the other branches? a. perpetual union b. division of powers c. cooperative federalism d. checks and balances