Including 2018, how many Oscar award ceremonies have there been?

To determine the number of Oscar award ceremonies including the year 2018, it's important to know that the first Academy Awards took place in 1929. The Oscars are held annually, so to find the total number of ceremonies up to and including 2018, you can follow this calculation:

Start from 1929 and count to 2018. The number of years from 1929 to 2018 is 2018 - 1929 = 89 years. Since you also count the very first ceremony that took place in 1929, you add 1 to this total. Therefore, 89 + 1 equals 90.

This makes 90 the accurate tally of Oscar award ceremonies held by 2018, confirming that the correct answer is indeed the number 90.