The Windscale Fire happened in Sallaﬁeld, UK. It happened in October 1957. This was the worst nuclear disaster in Great Britain’s history. It was ranked level 5 on the INES scale which is the Windscale Fire. There were 2 piles which had been built hurriedly as part of a Atomic Bomb Project of the British. The ﬁrst pile was active from October 1950 to June 1951. The Windscale Fire happened when the core of Unit 1’s reactor caught on ﬁre which released substantial amount of radioactive contamination. About 240 people got cancer because of this Fire. The milk from 500km was diluted and destroyed for about a month because of this Fire.