Blog Post Jul 30, 2023 World Day Against Trafficking in Persons: How Corruption Drives Modern Slavery Slavery was declared abolished in 1981 when Mauritania became the last country in the world to formally outlaw it, but 2023 numbers tell a different story: Today, on World Day Against Trafficking in Persons, an estimated 27.6 million people are trapped in modern slavery and 22 million in forced marriages around the world. And the numbers are rising.