Simplify the following text for a Grade 7 native English-speaking person.
Original: During the planning stages , it was known as Route C and then was named the Victoria line after Victoria Station by David McKenna , whose suggestion was seconded by Sir John Elliot .
Simplified: During the planning stages , it was known as Route C. Later , it was named the Victoria line after Victoria Station by David McKenna . This suggestion was seconded by Sir John Elliot .