From what I know, they were named by the Romans. the parts (mon- tues- ect.) were named for the sun, the moon, and different planets that the romans knew of; so mars, mercury, jupiter, venus, and saturn.
Approximatey, about 50% <span>of american adults has a diagnosable psychological disorder at some point in their life.
The percentage got bigger if it's measured in metropolitan cities such as new york or Washington DC, which are really well known for their high pace and stressful jobs</span>
