Aerial banners have been around since the 1930's, and are commonly used to advertise a service, product, company, or event. They can reach large audiences that are gathered together at events such as sporting events, entertainment venues, beaches, or other high traffic areas. Over the years, technology has changed and improved this form of unique advertising.
Aerial banners are sometimes used for personal reasons, also. A popular personal use of aerial banners is the marriage proposal.