As far as trade goes, we have birds of paradise in New Mexico, 320k year old obsidian tools and color pigments found in Kenya that came from hundreds of miles away. We know trading across thousands of miles has been happening for hundreds of thousands of years.
As for large celebrations, ceremonies, or just parties—well it seems silly for me to even spend time citing specific evidence. Of course this has been happening for hundreds of thousands of years as well
The (alleged) fact that there have been large celebrations does not necessarily imply that all humans of that time participated or enjoyed it, does it?
