Previously the earliest evidence was from 50,000 years ago, so another 350,000 is a big jump. The fact that it's also evidence of moving minerals over long distances and *baking clay?!* adds to the wildness.
Humans made fire 350,000 years earlier than previously thought, discovery in Suffolk suggests
Groundbreaking find makes compelling case that humans were lighting fires much earlier than originally believed
theguardian.com