merging, and looping datasets

draft and messy

The plot illustrates the time intervals between explosions in mines recorded from March 15, 1851, to March 22, 1962. Each data point represents the duration between consecutive incidents, showcasing patterns and potential trends over time. The visualization aims to highlight the distribution of these intervals, revealing possible clusters, periodicities, or irregularities that could offer insights into safety conditions, operational practices, or environmental factors influencing mine explosions during this period.