Notice, the Pentagon was opened on January 15, 1943, a date written 1/15.
Masonic = 115 / 43
Killing = 115 / 43
Lucifer = 115 / 43
-Each word has the 74 connection as well

As for opening on the 15th day of the year, that is the 5th triangular number, and the Pentagon is the building that pays tribute to 5 is a number of ways.

And furthermore, from September 11, 1941 to January 15, 1943, was 491-days.
491, 94th prime
Terror = 94
World Trade Center = 94
-WTCs opened on 94th day of 1973 April 4)

Recall the ‘terror’ attack on 9/11, in NYC, and at the Pentagon.