Simplify the following text for a Grade 9 native English-speaking person.
Original: The First Geneva Convention , for the Amelioration of the Condition of the Wounded in Armies in the Field , is one of four treaties of the Geneva Conventions .
Simplified: The First Geneva Convention is one of several Geneva Conventions . It is more formally known as the Convention for the Amelioration of the Condition of the Wounded in Armies in the Field , 1864 .