Complex sentence: It was created in 1957 through the "National Capital Development Commission Act 1957" and abolished after the "ACT (Self-Government) Act 1988" with most of it's functions passing to the new ACT government and the National Capital Authority.
Split into simpler sentences: It was created in 1957 through the "National Capital Development Commission Act 1957". The NCDC was abolished after the "ACT (Self-Government) Act 1988" with most of it's functions passing to the new ACT government and the National Capital Authority.