[3] The name "Agrifina" is a portmanteau of the words "Agriculture" and "Finance" since two neoclassical buildings located on opposite ends of the circle formerly housed the Departments of Agriculture and Finance.

[6] After World War II, when it was decided that the capital of the Philippines was to be moved to Quezon City, the then-plaza was converted into a roundabout.

A globe fountain and skating rink were installed on the central island.

However, the decision to build the tower at the site was controversial, and the plan was eventually shelved.

By 2000, the Binhi ng Kalayaan Monument had replaced the fountain, but the skating rink remained.