Complex sentence: Founded in 1968, the Suns are chronologically the second oldest team in the Western Conference and also chronologically the third oldest team in the NBA to have never won a NBA Championship while being in the NBA Finals at least once.
Split into simpler sentences: Founded in 1968, the Suns are chronologically the second oldest team in the Western Conference. The Suns are also chronologically the third oldest team in the NBA to have never won a NBA Championship while being in the NBA Finals at least once.