Simplify the following text for a Grade 9 native English-speaking person.
Original: The earliest known example is the one constructed by Crates of Mallus in Cilicia ( now Ã ukurova in modern-day Turkey ) , in the mid-2nd century BCE .
Simplified: The earliest known example is the one made by Crates of Mallus in Cilicia ( now Ã ukurova in modern-day Turkey ) , in the mid-2nd century BCE .