It was the site of a major battle between the Philippine Commonwealth troops and local guerrilla forces and the Japanese Imperial Army during World War II.

One of the earliest structures stands in front of the Capitol Building—a stately statue of Gen. Maximino Hizon of Mexico, the highest ranking Kapampangan officer in the revolutionary army.

When San Fernando played host to the biggest spectacle of the province in 1933, the Capitol Grounds became the venue for the Pampanga Carnival Fair and Exposition.

The Carnival was meant to promote Pampanga as the richest market outside of Manila, with rich limitless agricultural, commercial and industrial possibilities.

Only the Hizon Monument at the Arnedo Park remains, now nearly a century-old, a mute witness to the scenic wonder of the place, that once marked the hallowed grounds of Pampanga's Provincial Capitol.