sentences:  The property that caused it to live so long was dubbed "strangeness" and led to the discovery of the strange quark.Furthermore, these discoveries led to a principle known as the "conservation of strangeness", where in lightweight particles do not decay as quickly if they exhibit strangeness (because non-weak methods of particle decay must preserve the strangeness of the decaying baryon).In 1974 and 1975, an international team at the Fermilab that included scientists from Fermilab and seven European laboratories under the leadership of Eric Burhop carried out a search for a new particle, the existence of which Burhop had predicted in 1963.