1350 – A manuscript preserved in the archives of the crown of Aragon preserves evidence that, even then, the parish of Segariu was named after St. George. The church does not predate 1300, and it is not known whether it was built from scratch or whether it was retrofitted on a pre-existing church, presumably from 1111, the date engraved in a stone on the facade, which is no longer visible.
Leaning against the left wall of the church in the early 1900s, the new parish house was built, previously located between Montegranatico and the locality Sa Mitza de s’arei.
1643 – The structure was built in several stages and according to church records appears almost complete around the mid-1600s. In Aragonese Gothic style, it has a single, barrel-vaulted nave, 16 meters long and 6.26 meters wide, over which six chapels, including the chancel, open; all the arches of said chapels date back to the 16th century, including that of the second to the right of the nave, topped by a dome. Under the stone slabs of the ancient floor were buried priests and notables while, around the church, was the cemetery with a fence. Crossing the entrance, to the right, immediately after the wooden compass, was the marble baptismal font, covered by a wooden structure, an element that existed until the 1960s and was described in the 1700s as “almost new”; next to it was the shrine surmounted by a painting of John the Baptist baptizing Jesus, which was found and covered by plaster during the last restoration. The first chapel on the right had a wooden balustrade and, in 1831, was dedicated to the Virgin of Pity. The second chapel on the right, the only one with a hemispherical vault, did not have the characteristic wooden altar, which was instead added in 1790; the door connecting the two chapels was inserted in the 1960s.
The high altar was probably made of wood, as were the pulpit and balustrades, and was surmounted by a starry vault with a blue background, typical of the Gothic-Catalan style of the period, supported by pointed arches. Behind the altar there were not yet wooden seats, added later. All that remains today of the original, wooden pulpit cover in style and colors identical to the cover of the baptismal font. The first chapel on the left, under the bell tower, is much smaller than the others and was nicknamed “of the purgatorial souls” given the presence of an oil painting, in the shape of a semicircle, representing the souls of purgatory. In the 1970s, a hole was drilled in the vault, through which ropes were lowered that allowed the bells to be rung without climbing the steeple. On the second chapel, on the left, a statue of St. Michael was placed after 1805, and now, as then, it is possible to access the bell tower from here. On the third chapel to the left is a stucco-built altar in the late Baroque-Rococo style, which was already present in 1934 and presumably had a different form before then.
1666 – Purchase of the statue of St. George (on the pedestal of the statue can be seen the inscription: “Giuseppe Zanda invented and sculpted, year 1666”) and, in the following years, the bell tower was completed (1667) and the construction of the wooden staircase and vault was completed (1668).
1790 – Construction of the wooden altar of the only hemispherical vaulted chapel by the confraternity custodian or prior, Giuseppe Pinna, and master carpenter, Francesco Frau.
1821 – Bishop’s decree for the construction of the high altar in marble, previously built, most likely, in wood and other less valuable materials.
1829 – Purchase of pipe organ and arrangement behind the high altar by the same priest L. Gabriele, from the firm Domenico Curci of Naples.
Early 1900s – Construction of the parish house next to the church, formerly located near Montegranatico.
2011 (Oct. 28) – The church-parish house complex was declared by the Ministry of Cultural Heritage and Activities to be of historic-artistic cultural interest and thus subject to all protection provisions.