1. It was the largest naval battle in history.
2. It marked, according to most accounts, the beginning of the Japanese kamikaze strategy.
Allied forces:
8 fleet carriers
8 light carriers
18 escort carriers
24 cruisers
141 destroyers and destroyer escorts
Japanese forces:
1 fleet carrier
3 light carriers
9 battleships
14 heavy cruisers
6 light cruisers
35+ destroyers