What was te hardest work that slaves did?

Which four of these developments were made under mongol rule during the pax mongolica? the extension of the grand canal in china the spread of christianity the spread of weapons that used gun powder the invention of new medicines the establishment of a postal system the invention of geometric models of lunar motion

In western europe, under the , jews enjoyed some autonomy. then, during the post–french revolution period, was also tolerant toward the jews.

What was the significance of john hancock's signature on the declaration of independence?