One could say that Victoria Falls has always been a wonder - since humankind first laid eyes on it.
The complication in this question is that there is no official list of wonders. Instead, there are many lists, compiled by many sources along many different themes, of which Victoria Falls is included in some, but not others.
We should appreciate Victoria Falls for the natural wonder that it is - the widest continuously falling sheet of water in the world.
Victoria Falls was first discovered by a European explorer, David Livingstone, in 1855. Livingstone named the falls in honor of Queen Victoria of Britain.
David Livingston
David Livingstone was the first white explorer to see and explore the Falls in 1855
Victoria Falls is on the border of Zimbabwe and Zambia.
Niagara Falls is Much faster than Victoria falls and Victoria Falls is Much Higher!
Victoria Falls is located between Livingstone, Zambia and Victoria Falls, Zimbabwe.
Victoria Falls is in Zimbabwe.
The Victoria Falls Hotel is 22 km from the Victoria Falls Airport.
Victoria falls is made out of molten lava.
The Victoria Falls are on the Zambezi river.
Victoria falls culture is African
Queen Victoria did not see the Falls