I can't recall there ever being a final 4 with all the # 1 seeds. I would guess no. However I'm pretty sure there has been final 4's with no
# 1 seeds left. Someone will have to look it up.
Bingo, you are correct ! However since Memphis was forced to vacate all their games because of a recruiting violation ** Derrick Rose } , I'm not sure that We can even count 2008 as official. If We do count 2008, that was indeed the first time ever !
according to Wikipedia these are the years without 1 seeds
* 1980 -- Louisville - number2, Iowa - number5, Purdue - number6, UCLA - number8
* 2006 -- UCLA - number2, Florida - number3, LSU - number4, George Mason - number11
Technically there has never been a year with all four #1's, but if 4 1 seeds made it next year i dont think they would refer to it as the first time it's happened.
according to Wikipedia these are the years without 1 seeds
* 1980 -- Louisville - number2, Iowa - number5, Purdue - number6, UCLA - number8
* 2006 -- UCLA - number2, Florida - number3, LSU - number4, George Mason - number11