The Basilica of St. Dominic is one of the three parish churches of Valletta. It is administered by the Dominican Order whose convent is located behind the church.
The land upon which the church and convent are built were given to the order by Grand Master Pierre de Monte. Girolamo Cassar was commissioned to draw up the plans. The first stone was laid on 19 April 1571. The parish was established on 2 July 1571 by a decree given by Pope Pius V, considered as the benefactor of the construction of Valletta. It was dedicated to Our Lady of Fair Havens which means 'Good Harbour' because of the great number of sailors that used to attend services at the small chapel that the Dominicans had built prior to the construction of the large church. It was also declared that the parish of St Dominic would be the principle parish church of the city.
The church was closed and declared unsafe on July 24, 1780 as a consequence of earthquakes and severe storms. A new church was built on the same site of the original church some 25 years after it was closed. The church was opened and blessed on May 15, . The church was elevated to the dignity of a Minor basilica on March 25, 1816. The church was finally consecrated on October 15, 1889 by Archbishop Pietro Pace.
References:The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.