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
The Phoenicians
They were part of the Semitic peoples.
They were absorbed into other peoples.
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.
They were both Semitic peoples and neighbours.
The Phoenicians were from the Levant, not Mesopotamia. They passed on their alphabet.
The Phoenicians introduced an alphabet that would later influence the Greek alphabet. The Greek alphabet was adapted from the Phoenician script, with modifications and additions made to accommodate the unique sound system of the Greek language.
Lisbon, Portugal, fits the description in a "general" way, except that, though there was Phoenician influence, the Phoenicians may not have actually "founded" Lisbon.
To the peoples around the Mediterranean Sea.
Phoenicians continued trading even when they were not independent.