They gave them the alphabet which has been the basis for written communication passed on to the Greeks, Romans and to us today.
they did not
They were absorbed into other peoples.
They were part of the Semitic peoples.
The Phoenicians
The first in Spain were the indigenous peoples with whom the Phoenicians traded.
The Persians absorbed the Phoenicians into their empire, and used their resources.
The Phoenicians were from the Levant, not Mesopotamia. They passed on their alphabet.
They were both Semitic peoples and neighbours.
Lisbon, Portugal, fits the description in a "general" way, except that, though there was Phoenician influence, the Phoenicians may not have actually "founded" Lisbon.
Phoenicians continued trading even when they were not independent.
To the peoples around the Mediterranean Sea.
Due to their sailing skills, the Phoenicians served as missionaries of civilization, bringing eastern Mediterranean products and culture to less advanced peoples.