I’m still learning about synths, so someone can probably give a better answer for why this was significant. However, here is what I got when I asked GPT:

The Roland TR-808 drum machine, often simply referred to as the “808,” holds immense significance in the music world. Introduced in the early 1980s, the 808 synth played a pivotal role in shaping the sound of multiple genres, including hip-hop, electronic, and dance music. Its distinct analog drum sounds, such as the booming bass kick and snappy snare, have become iconic and have had a lasting influence on the sonic palette of contemporary music. The 808’s affordability, innovative features, and unique sound led to its adoption by musicians and producers, helping to define the sound of an era and inspiring countless artists to explore new creative avenues.