Biography for
Dr. Daniel Jackson (Character)
from Stargate (1994)

Dr. Daniel Jackson is an only child and an orphan. His maternal grandfather and only living relative, Nick Ballard, lives on another planet with giant aliens ("Crystal Skull"). Daniel's parents, Melbourne and Claire Jackson, also archaeologists, were crushed while supervising the placement of a piece of Egyptian art in the Metropolitan Museum of Art ("The Gamekeeper"). His grandfather abandoned him after the funeral. Though placed in foster care, Jackson visited his grandfather in a mental institution until they had an argument over Daniel's failing career (Mainly his theory that the pyramids weren't built by the ancient Egyptians, which was coincidentally true.) and Daniel left.

Daniel is an archaeologist and linguist who speaks more than twenty-three languages ("1969", in "200" the number is given as twenty-seven. It is possible he learned another four languages in the eight years between the two episodes); on-screen, he has been shown speaking English, Ancient Egyptian, Spanish, Russian, Mandarin Chinese, and German; as well as Goa'uld, Ancient, and Unas (which he decoded himself). He has PhDs in Archaeology, Anthropology, and Philology.

Not including alternate time lines and dimensions, Daniel Jackson has died a total of four times. Including the alternate time lines it's closer to 22.