[3] Recent historical research found that instead of being in Bool, Tagbilaran, the actual site of the Blood Compact between Legazpi and Sikatuna may be in barangay Hinawanan.

[5] Loay is also known for the many antiques discovered in its soils, thus indicating a civilization before the Spanish came to Bohol: it has become an haven for the treasure hunters.

[citation needed] The town of Loay, Bohol celebrates its feast in May (the date is movable), to honor the town patron Santisima Trinidad/Blessed Trinity[6] During the period 1751–1754, Loay was a small village called Santissima Trinidad located at the strip of the Loboc River, as mentioned in the accounts of Father Juan Delgado (1892).

It was separated from the Loboc mission in 1795, although some state 1815 as the foundation date, and Redondo 1886 reflects that it became an independent parish in 1799.

On April 27, 2022, the old Clarin Bridge carrying National Route 850 (N850) over the Loboc River in Loay collapsed, killing 4 people and injuring 15.