I'm posting you five questions, as promised. Thank you very much.

1)Under Henry VII England enjoyed a fairly long spell (I need a synonym) of unbroken peace and prosperity.
2) In particular, a mercantile fleet was created whereas the army and the navy were reorganized and put under direct control of the king.
3) With the Act of Supremacy the Church of England was made (declared to be?) independent (of Rome) and its bishops were subject to the authority of the king.
4) (The Pope refused to grant Henry VIII a (is "a" necessary??) divorce from Catherine of Aragon.)
5) Mary I was a devout Catholic. She had 300 Protestants burned, which earned her the title of Bloody Mary. James I believed in the divine right of the monarch.

1) Under Henry VII, England enjoyed a fairly long period of peace and prosperity.

2) In particular, a mercantile fleet was created, and the army and the navy were reorganized and put under the direct control of the king.

3) With the Act of Supremacy, the Church of England was declared independent of Rome, and its bishops were subject to the authority of the king.

4) The Pope refused to grant Henry VIII a divorce from Catherine of Aragon.
(Yes, "a" is necessary there.)

5) Mary I was a devout Catholic. She had 300 Protestants burned, which earned her the title of Bloody Mary. James I believed in the divine right of the monarch.

1) Synonym for "a fairly long spell" in the context of the sentence could be "a considerable duration" or "an extended period."

To find a synonym, you can use a thesaurus. There are several ways to access a thesaurus, both online and offline. You can visit a trustworthy online thesaurus website, such as Thesaurus.com or Merriam-Webster.com, and search for the word "spell." The website will provide you with a list of synonyms to choose from. Additionally, if you have access to a physical thesaurus book, you can look up the word in the book's index and find the synonym.

2) To verify the information about the creation of a mercantile fleet and the reorganization of the army and navy under the direct control of the king during the reign of Henry VII, you can conduct research using reputable sources such as history books, scholarly articles, or reliable historical websites. Libraries, academic databases, or online resources such as JSTOR or Google Scholar can provide you with credible information on this topic.

3) "Declared to be independent" is a suitable phrase to describe the action taken with the Act of Supremacy. To confirm the accuracy of the statement, you can refer to historical records, textbooks, or reliable online historical sources. The Act of Supremacy was a piece of legislation passed in 1534 during the reign of Henry VIII, which declared the English monarch to be the supreme head of the Church of England, thus asserting its independence from the authority of the Pope in Rome.

4) Though the use of 'a' before 'divorce' is not necessary, it does not affect the meaning of the sentence. This is a matter of style and preference.

To verify the accuracy of the statement regarding the Pope's refusal to grant Henry VIII a divorce from Catherine of Aragon, you can refer to historical records, biographies, or reputable historical sources. The denial of the annulment by the Catholic Church was one of the key factors that eventually led to the English Reformation.

5) To confirm the information about Mary I's actions and James I's belief in the divine right of the monarch, you can refer to historical records, biographies, or reliable historical sources. The burning of Protestants during Mary I's reign is well-documented and earned her the infamous nickname "Bloody Mary." Similarly, James I's belief in the divine right of the monarch is a well-known aspect of his reign, which can be studied through historical sources and related materials.