Searching significance of 23…oh boy…many things. One of which…
11 September 2001 have been held up as one of the most portentous examples of the disturbing power of 23. The figures in the date (9+11+2+0+0+1) add up to 23.
The first morse code transmission - "What hath God wrought?" - was from the Bible passage Numbers 23:23. In telegraphers code 23 means "break the line".