Miss Universe 2010 National Costume Show

In the early years of the pageant, the delegates who made the cut were announced after the preliminary competition. From 1965 to the present day, the semi-finalists were not announced until the night of the main event. The semi-finalists once again competed in evening gown and swimsuit and a top 5 were announced. An interview portion was introduced in 1960 to decide the runners-up and winner.
From 1959 to 1964, there were slight format changes. In 1959 through 1963, there was no cut to 5 finalists; the runners-up and winners were called from the assembled 15 semi-finalists. In 1964, the top 15 became a top 10, and after a round of interview, the winner and runners-up were called from the 10 finalists.
In 1965, the pageant returned to the original format of a cut to 5 finalists, and remained so until 1989.
In 1969, a final question was posed to the last five contestants. The final question was an on-and-off feature of the pageant. In 1990, it had taken root and every pageant since, the final contestants have to answer a final question.