I want to know the answer to the following question:
Where did department stores begin to advertise after the large influx of new shoppers?
All the background I'm provided with is that "In the 1840s, with the arrival of the railroads in Paris and the increased number of shoppers they brought, they grew in size, and began to have large plate glass display windows, fixed prices and price tags, and advertising in newspapers.". Is that enough to answer the question?
Answer: yes