Jay, there is nothing absolutely certain back more than a million years. but there is some interesting things. Medieval Monks defleshed their dead. It leaves a pattern of cut marks on the bones. The bones were then put into catacombs. The marks are identical for cannibalism but many anthropologists believe either activity is evidence of religions feelings.
This is what I have for prior to a million year. I want you to remember that there is excellent evidence that H. erectus had a temporal planning horizon of days or weeks,https://www.asa3.org/ASA/PSCF/1999/PSCF9-99Morton2.html and that his predecessor A. africanus was able to recognize a symbol of himself, 3 million years ago in the form of the Makapansgat pebble (see does a small brain make you dumb? thread). thus we can expect that H. erectus could deal in symbolism and we know later erectines did. Given this planning horizon, they had the ability to think in terms of consequences. Shoot, Stone Tool making requires knowledge of if I strike here, I will ruin my tool, but if I strike there, it will be a good tool. this kind of thinking leads me to see that H. erectus would have been able to see the eaten as a symbol of himself, and know the consequences. Here from my religion is old page: But as I said, it isn’t certitude.
Defleshing or Cannibalism: Both are religious
Early Christians collected the bones of the saints and stored them in ossuaries such as the Catacombs.
" The use of ossuaries is a longstanding tradition in the Orthodox Church. The remains of an Orthodox Christian are treated with special reverence, in conformity with the biblical teaching that the body of a believer is a “temple of the Holy Spirit”,[1] having been sanctified and transfigured by Baptism, Holy Communion and the participation in the mystical life of the Church.[2] In Orthodox monasteries, when one of the brethren dies, his remains are buried (for details, see Christian burial) for one to three years, and then disinterred, cleaned and gathered into the monastery’s charnel house. " 26
Cleaning the bones would often involve sharp objects to separate the remaining flesh from the bones and that would leave marks on the bones. This was done for religious reasons. Using knives to take meat off of bones leaves the same kind of marks when it is done for the purpose of cannibalism. But either way, spirituality is involved.
There are some funeral rituals among the Homo erectus which are also consistent with spiritual beliefs. They occasionally treated human remains as did medieval monks and early Christians. Bone were defleshed and that leaves characteristic cut marks on the bones. Some say this is cannibalism, but cannibalism is a highly symbolic activity for humans. Consider the Lord’s Supper, “Take eat; This is my body…” We Christians engage in symbolic cannibalism, and it is not too different from what the Ainu do with the bear’s flesh and blood. So, even if it is cannibalism, it probably represents a spiritual dimension. Human sacrifice, as appears to have happened at Bilzingsleben also is part and parcel of spirituality (especially for a Christian who believes t hat Jesus’ sacrifice saves us from our sins).
" Although the reader may flinch at the suggestion that cannibalism indicates higher cognitive abilities, historical records indicate that cannibalism practiced by Homo sapiens in the late nineteenth and first half of the twentieth centuries served ceremonial more than nutritive purposes. " 27
I might note that the Fore people of New Guinea also ate the brains of their kinsmen, and they got Kuru, this has left a mark on the human genome. I edited this to make it more understandable to the average reader:
” Kuru is an acquired prion disease largely restricted to the Fore linguistic group of the Papua New Guinea Highlands, which was transmitted during endocannibalistic feasts. Heterozygosity for a common polymorphism … confers relative resistance to prion diseases. [grm-Elderly survivors of multiple cannibalistic feasts have this heterozygosity but most young people don’t. The elder’s contemporaries,who had homozygotes died off.] Kuru imposed strong balancing selection on the Fore, essentially eliminating PRNP 129 homozygotes. Worldwide PRNP haplotype diversity and coding allele frequencies suggest that strong balancing selection at this locus occurred during the evolution of modern humans . ” 28
These authors say that actual cannibalism of this nature was widespread in human history and it affected our genes—there was a widespread belief that one got part of the spirit of the dead eating them. There is a family story passed down by my great great grandfather that a group of Native Americans who had killed my 5th great grandfather, ate his heart because he had fought so bravely. Whether true or not, the claim was, that this man’s father had heard it from one of the individual’s involved. The data above says cannibalism was widespread in our past.
" Although the prion gene could have been subject to other unknown forms of selection, available evidence appears consistent with the explanation that repeated episodes of endocannibalism-related prion disease epidemics in ancient human populations made coding heterozygosity at PRNP a significant selective advantage leading to the signature of balancing selection observed today .” 29
Symbolic and ritual behavior is evident among the erectines prior to 100 kyr ago. Thus to claim that religion is only found among the anatomically modern humans is false in the face of the anthropological data. Unfortunately, too many Christian apologists selectively cite data that supports their position and ignores data that doesn’t. In the case of ancient religion, this is a very widespread practice.
How old is the evidence for cannibalism? Quite old, possibly 2 million years old and it is among the H. erectus’s. This was either defleshing as a ritual mortuary practice or cannibalism.
" Microscopic analysis of a 1.4-million-to-2.4-million-year-old Homo upper jaw has yielded the earliest evidence of human ancestors cutting one another apart with stone implements much as they butchered animals."
“The fossil jaw, previously found in South Africa’s Sterkfontein Cave, bears several incisions made by sharpened stone tools, reports Travis R. Pickering of the University of Wisconsin-Madison. The position and arrangement of the cuts suggest that a facial muscle was sliced off in order to remove the lower jaw from the rest of the skull, Pickering says. A wide range of butchered animals display comparable incisions on their jaws, he and his coworkers assert."
“ Until now, the oldest evidence of stone-tool cuts on a member of the human evolutionary family came from a 600,000- year-old skull found in Ethiopia. "
“Pickering’s group examined a specimen that consists of nine pieces of cranium and jaw. They studied casts of these fossils with a scanning electron microscope. “Trampling by hoofed animals and gnawing or chewing by meat-eating creatures cannot account for the ancient incisions, Pickering holds. The cuts retain the same color and appearance as surrounding bone, indicating that they were not produced after the jaw’’ burial. “No stone-tool marks appear on the more than 700 animal fossils found in the same Sterkfontein sediment layer as the Homo specimen, Pickering notes. “It’s not known why someone sliced off the Sterkfontein individual’s lower jaw. Possibilities include cannibalism or ritual dismemberment following death. ” 30
Of course we can’t know what was in the mind of a hominid 2 million years ago any more than we can know what was in the mind of a medieval monk defleshing his fellow monk. We accept that he was doing it for religion but somehow deny that it might apply to earlier hominids. Dean Falk says that it appears H. erectus seems to have opened up skulls with regularity and maybe because of their spiritual views:
" We, of course, have no way of knowing what Homo erectus thought about death or a possible afterlife. We do know, however, that there are a large number of Homo erectus skullcaps that look as though they have been deliberately opened. Too many, I think, to be mere coincidence. If Homo erectus did practice cannibalism, it could have been for any number of reasons documented in historical times. These include intertribal warfare, personal revenge, punishment, or rituals associated with rites of passage, such as birth, formal entrance into manhood, marriage, or death. Or perhaps Homo erectus simply ate the brains of his victims to assimilate their powers. We’ll never know for sure. But one thing is certain. Unless the numerous faceless, bottomless skullcaps from Java and China occurred coincidentally by pure, dumb luck, Homo erectus did have a concept of death. And that’s not bad information processing for 1,000 cm3 of brains ." 31
Falk believes that the widespread and common occurrence of only skullcaps is a sign of post-mortem body processing. A parallel with this skull cap processing took place 13 to 15 thousand years ago among anatomically modern H. sapiens at Gough’s Cave in Somerset England, where human skull caps were turned into drinking cups. 32 We accept the spirituality of humans engaged in this behavior, but want to deny it for the erectines when they do the very same thing.
References at https://themigrantmind.blogspot.com/2019/06/when-did-adam-live-part-1-religion_15.html
Edited to add, gotta go do something useful