There is no way to tell. Official recordkeeping is a very recent practice.
Since not everyone chooses to tell everyone of their sightings of Bigfoot around the world, it is hard to say precisely how many sightings there have been.
It originated since the first sighting by a white man from Canada. actually it was native american legends and stories
It is hard to tell as not every sighting has been recorded, and some are hoaxes, but ever since man has lived on earth there have been UFO sightings. But well recorded sightings go back earlier that the 1600's.
The first documented sighting of the Ogopogo monster in Okanagan Lake was in the late 19th century, around the 1870s. Since then, there have been numerous reported sightings and speculation about the creature's existence.
It is impossible to tell since sightings and stories of Bigfoot predate record keeping.
Bigfoot has been sighted by Native Americans since the 16th century.
The first reported sighting of the abominable snowman, also known as the Yeti, was in the Everest region of Nepal by a British explorer named Charles Howard-Bury in 1921. Since then, there have been various accounts of sightings in the Himalayas.
The first "sighting" of Stonehenge was when it was built. Since that time it has remained in the same location, which has been common knowledge. It has never been lost or rediscovered.
Mabey 200+.Bigfoot has been said to have been around since the 1800's.Not surprise if its over 400.
Sasquatch is the Native American word for large, hairy, apelike creatures that supposedly roam the woods of the Pacific Northwest and Canada. There have been hundreds of Sasquatch (or Bigfoot, as they are also known) sightings since the mid-nineteenth century. The majority of them have occurred in the Pacific Northwest, although sightings have been reported throughout the United States and Canada. Bigfoot have been sighted in all 48 contiental states, Canada and Alaska. This means that bigfoot can adapt to any environment and make it it's habitat.
There is no reliable data on the number of UFO sightings reported specifically in AD 960 as modern methods of tracking and documenting UFO sightings did not exist at that time. UFO reports began to be documented in the mid-20th century with the establishment of organizations like the Mutual UFO Network (MUFON) and the National UFO Reporting Center (NUFORC).
Since Bigfoot doesn't exist, nothing.