ECO A10: English Opening
ECO A10 is part of volume A — Flank Openings.
The Lichess chess-openings dataset files 20 named lines under it.
The shortest is English Opening:
1. c4.
That position has come up in 101,529,932 Lichess games between players rated 1600 to 2500: White won 50.4%, 5.3% were drawn and Black won 44.3%.