citeseerx.ist.psu.edu

0wjL5 TIL that rats left unaided in water will drown in a few minutes because they feel hopeless, but if they know there is hope of being rescued they will last for days.
VMlN4 TIL that Paraguay briefly made married polygamy legal in the 19th century, after a major war against neighboring countries had claimed the lives of many men. At that time, males were only 13% of the total population of Paraguay.
rRd7M TIL that the world's first mental health hospital was built in Baghdad, Iraq in 705 AD. While mental health patients were being condemned, punished, and even burned in Europe, 8th and 9th century mental health patients in Iraq, Egypt, and Syria were given more proper hospitalization and treatment.