Fig. 2. Evaluation procedure of the found events.

a Mean data of the two events (7176 BCE left, 5259 BCE right) with 1-σ errors and result of 1000 Simulations (blue lines) The fitted Gaussian shaped production spikes for all simulations is also shown. b Distribution of the simulated ∆¹⁴C increases (blue bars) with a gaussian fit (dashed line). c Distribution of excess ¹⁴C production (blue bars) with Gaussian fit (dashed line).