How was the abolition of debt slavery in Athens?

At the turn of the 7th and 6th centuries BC. NS. the Athenian demos fought for their rights in the polis. The situation in Athens at the beginning of the 6th century BC NS. was critical. Many people were in bondage due to debt. People sold their relatives and children there. With the advent of Solon, the situation changed. In 594 BC. NS. he issued a law prohibiting the ransom of all citizens of Athens from slavery, as well as prohibiting their sale back. After that, a reform of the society into 4 property classes was announced. According to this reform, the poorest class could also participate in the political life of the city.