Thales of Miletus has been regarded since antiquity as the first western philosopher. He was the founder of what came to be known as the Ionian school of natural philosophy. He was a Milesian of Greek origin. He flourished around 580 B.C.E.

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That's a good question, but this is like asking "Philosophy begins with which Hellenistic Philosophy?" or "Philosophy begins with which Medieval Scholasticism?" or "Which philosopher began British Philosophy?" because the answer is that there is no first philosopher that began any peculiar kind of philosophy that characterized an era, culture, nation, etc. However one of the earliest known philosopher of the pre-socratic times is the Milesian philosopher Thales (Aristotle considered him to be the first philosopher of the pre-socratics, but we don't know this for sure).

Greek numerals are a system of representing numbers using the letters of the Greek alphabet. They are also known as Milesian numerals, Alexandrian numerals, or alphabetic numerals. In modern Greece, they are still in use for ordinal numbers.

The earliest school in ancient Greece was the Milesian School founded by Thales, information can be found on the Wikipedia web site, the other great school was founded by Plato. The Platonic Academy. Most children did not attend school, and those that did attended from the age of 7 till about 13 years of age. They learnt about politics and the rules of the assembly, they also learned weaponry ,warrior skills and wrestling.

so the answer is yes =) =p