* The violin was built: The earliest known violins date back to the 16th century.
* The book was printed: The invention of the printing press by Gutenberg in the 15th century revolutionized book production.
* Protestant hymnals were published: The Protestant Reformation began in the early 16th century, and hymnals were a key part of Protestant worship.
* Opera performance: Opera emerged in the late 16th century in Italy.
Therefore, the earliest event would be the book being printed.
Here's a timeline to illustrate:
1. 15th century: The printing press is invented and books start being printed.
2. Early 16th century: The Protestant Reformation begins, leading to the publication of Protestant hymnals.
3. 16th century: The violin is invented.
4. Late 16th century: Opera emerges.