I think it should be because diplomats is the representative of a nation and negotiating with other nations could be more easier if we're already friendly with the diplomat. Also the way we treat their diplomat is also the way of how we treat the nation he/she representing and it would add a good standing in the global status if we are respecting the diplomats.
C egyptians did it first. <span />
Because he sent his dogs to he sails man across the ocean from point A to point B
Most irish immigrants came to the us because of the great potato famine and many more.
