Is the Canadian immigration policy better than the US or worse? Why do you think that?

Contrary to popular opinion, it is much easier to immigrate to Canada than to USA. ... Canada is more or less the opposite. It is not so easy to enter as a worker (unless you have an employer with a validated offer of employment from Human Resources Canada) but much easier to immigrate if you qualify.

these civilizations were located around fertile rivers, where they could produce an abundance of crops

the committees of correspondence were the american colonies’ means for maintaining communication lines in the years before the revolutionary war. in 1764, boston formed the earliest committee of correspondence to encourage opposition to britain’s stiffening of customs enforcement and prohibition of american paper money. the following year, new york formed a similar committee to keep the other colonies notified of its actions in resisting the stamp act. in 1773, the virginia house of burgesses proposed that each colonial legislature appoint a committee for intercolonial correspondence. the exchanges that followed built solidarity during the turbulent times and bring about the formation of the first continental congress in 1774.