PHILADELPHIA (AP) — No batting helmets, no fielding gloves and no pitching overhand.

This isn’t your grandfather’s baseball. It’s your great-great-grandfather’s game.

Vintage baseball teams throughout the U.S. play America’s favorite pastime the old-fashioned way. That means wearing historically accurate 19th century uniforms and using rules from 1864.

And the sport is growing. Players say it brings them back to a simpler time and preserves a slice of the past.

Modern-day fans watching these games might notice home plate is round, and the bases are canvas bags filled with sand. Team members even drink beverages from metal cups or canteens.

The vocabulary is different, too. Batters are called “strikers.” And if you make an out, you’re “dead.”

In that case, you can let loose with a vintage curse word: “Tarnation!”