alley oop

Though not the first or most famous of its class, learning that the mildly mysterious Coso Artefact was discovered on this date in 1961 by some rock-hounds in California’s Owens Valley did impel us into the strange and contentious realm of out-of-place archaeology. While prospecting for geodes, the group found a spark plug from the 1920s encased in a rock that was estimated to be a half-a-million years old.
Though geological processes could account for the concretion and nodule formation around the clear anachronism, proponents of time-travel, prehistoric alien visitation and lost civilisations of course carried the day—as they do for other anomalous found objects, deemed in the wrong chronological context, that are categorised as OOPArt (Out-of-Place Artefacts). While not all are haunted with the blight of pseudoscience and sometimes there is a honest misinterpretation, wishful-thinking or confirmation-bias over a pet theory, most claims are dubious and tend to be a demerit to human ingenuity and accomplishment, like the Nebra Skydisk or the Antikythera mechanism being the artifice of extra-terrestrials or even gods, pareidolia due to suboptimal inputs and of course outright forgeries and hoaxes meant to embarrass or strengthen an agenda or alternate point-of-view.