Complex sentence: There was no proper educational system before the 1950s and the education reforms of the 1950s meant that by 1957 schools were no longer available to the wealthy, but costs are a problem to this day.
Split into simpler sentences: There was no proper educational system before the 1950s. The education reforms of the 1950s meant that by 1957, schools were no longer available to the wealthy, but costs are a problem to this day.