The answer is 18, you just have to count the total number of cubes
Highly demanding physical labor for 13+ hours. They were payed the dirt they stood on, children were forced to miss school most of the time because they had to work to support the family. They were also highly expendable, so no medical care was offered, and they were ignored from any complaints. They were basically ignored, and couldn't do anything about it in fear of deportation of their families.
Also, racism and all that affects how they were treated.
But things like the Mexican Repatriation is something to look into. So i definitely suggest it!
Wars of Religion, (1562–98) conflicts in France between Protestants and Roman Catholics. The spread of French Calvinism persuaded the French ruler Catherine de Médicis to show more tolerance for the Huguenots, which angered the powerful Roman Catholic Guise family. Its partisans massacred a Huguenot congregation at Vassy (1562), causing an uprising in the provinces. Many inconclusive skirmishes followed, and compromises were reached in 1563, 1568, and 1570. After the murder of the Huguenot leader Gaspard II de Coligny in the Massacre of Saint Bartholomew’s Day (1572), the civil war resumed. A peace compromise in 1576 allowed the Huguenots freedom of worship