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.
In 1990, the pageant implemented major format changes in the competition itself. Instead of five finalists, the field was reduced from 10 semi-finalists to 6. Each contestant then randomly selected a judge and answered the question posed by the judge. After that, the field was narrowed down further to a final 3. In 1998, the number of finalists was reduced to 5, although there still was a cut to a final 3. This continued to 2001, where the final 5 format was re-instated.
In 2000, the interview portion of the semi-finals was quietly dropped and the contestants once again, as in the early days of the pageant, competed only in swimsuit and gowns.
In 2003, the Top 15 was again selected instead of the Top 10. Cuts were made to make the Top 10, and eventually the Top 5. The final question varied, each coming from the final delegates themselves and the current Miss Universe.
In 2006, twenty semi-finalists were announced, with these delegates competing in the swimsuit competition. The number of competing delegates was then cut to ten, with those delegates competing in the evening gown competition. After that round of competition, the final five were announced, with the finalists competing in the "final question" or interview round. At the end of competition the runners-up were announced and the winner crowned by the outgoing queen.
In 2007 the format changed slightly with the top 15 moving to the swimsuit competition; from there, 10 selected contestants moved on to the evening gown competition where half were eliminated. The final five answered the final question to decide the ultimate winner.
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