How were 9/11 dogs initially used?

In addition to search and rescue dogs at ground zero, therapy dogs provided comfort to the firemen and rescue workers who continued to work countless hours on the pile.

2686-2181 bce-- "egyptian civilization developed along the nile river in large part because the river’s annual flooding ensured reliable, rich soil for growing crops."

1069-664 bce-- "ancient egyptians developed wide-reaching trade networks along the nile, in the red sea, and in the near east."