When was the construction work for the first Railway line Started?

The correct answer is D. 1830.

The first public railway line was opened in 1830 between Stockton and Darlington in England. It was built by George Stephenson and his son Robert. The line was 26 miles long and used steam locomotives to pull trains.

The other options are incorrect.

• Option A: 1821 is the year that the first steam locomotive was built by Richard Trevithick.
• Option B: 1828 is the year that the first passenger railway line was opened in England, between Liverpool and Manchester.
• Option C: 1823 is the year that the first railway company was formed in England, the Stockton and Darlington Railway Company.