Final answer:
Formal slavery is officially outlawed worldwide, but modern forms of slavery persist, and not all countries have made slavery explicitly illegal in their constitutions or laws.
Step-by-step explanation:
Legality of Slavery in Today's World
The question of whether slavery is illegal in every country today can be answered by understanding the current global stance on slavery. While traditional slavery as an institution is officially outlawed worldwide, the unfortunate reality is that modern forms of slavery still persist. According to the International Labour Organization, an estimated 40.3 million people are living in conditions of modern slavery, including forced labor and servile marriage.
It's important to note that modern slavery, which includes human trafficking, forced labor, and certain forms of servile marriage, is recognized by global organizations such as Anti-Slavery International. However, as per the information provided, the challenge in combatting slavery is enhanced by the fact that it is not explicitly made illegal in every country's constitution or laws, with examples being Canada and Sweden.
In answer to the original question: As a formal institution, slavery is illegal in every country in the world today, the answer is a. true, with the understanding that modern slavery still exists and is an issue that continues to affect millions globally.