The term "4-6-0" refers to a specific wheel arrangement used in steam locomotives. In this configuration, the first number (4) indicates four leading wheels, the second number (6) represents six driving wheels, and the last number (0) signifies no trailing wheels. This arrangement is known for providing good stability and power, making it suitable for both freight and passenger services. The 4-6-0 design became popular in the late 19th and early 20th centuries, with many famous locomotives built using this configuration. Notable examples include the Baldwin Locomotive Works and the London and North Eastern Railway engines, which showcased the versatility and efficiency of the 4-6-0 design in various rail applications.