Original sentence: One of the fact overlooked in the construction the Transcontinental Railroad was the prominent role played by Chinese workers who are not seen in the historic pictures at Promontory.The location of the Golden Spike is sometimes erroneously (especially colloquially) identified as Promontory Point
Edited sentence: Note: The location of the Golden Spike is sometimes erroneously (especially colloquially) identified as Promontory Point.One of the fact overlooked in the construction the Transcontinental Railroad was the prominent role played by Chinese workers who unfortunately are not seen in the historic pictures at Promontory