Short answers, pulled from the story.
Portuguese captain-general Francisco Caldeira Castelo Branco founded Belém on the 12th of January 1616. He anchored his fleet in Guajará Bay and constructed a wooden fort named Presépio to establish the colony of Feliz Lusitânia.
The original name of the fort was Presépio, which translates to nativity scene. This structure later became known as Forte do Castelo and served as the embryo of the city of Belém.
The rubber boom in Belém peaked between 1910 and 1912. This period of wealth allowed the city's elite to construct grand town mansions in eclectic styles based on French models.
The largest religious event in Brazil, the procession of the Círio of Nazaré, occurs every year on the second Sunday of October. The festivities span 15 days and culminate in the Re-Círio.
Italian architect and artist Giuseppe Antonio Landi arrived in Belém in 1753. He was invited by Governor Francisco Xavier de Mendonça Furtado to redesign the urban plan and introduce neoclassical architecture.
The population of the metropolitan area of Belém is 2,491,052 people. This figure makes the city the 16th most populous city in Brazil by economic relevance.