Simplify the following text for a Grade 8 native English-speaking person.
Original: The Albany Train Yard was also used to store a pair of ALCO PA diesel-electric locomotives from the mid-1990s to early-first decade of the 21st century .
Simplified: The Albany Train Yard was also used to store a pair of ALCO PA diesel-electric locomotives from the mid-1990s to early-2000s .