Explain how the rosary came to have fourth set of mysteries?

Originally there were three sets of mysteries: the Joyful Mysteries, the Sorrowful Mysteries, and the Glorious Mysteries. Pope John Paul II, On October 16, 2002, almost 600 years after the original Mysteries of the rosary were established the pope proposed the addition of a new set of mysteries called the Luminous Mysteries or the Mysteries of Light. The mysteries are:

i) The Baptism of Jesus in the Jordan

ii) The Wedding at Cana

iii) The Proclamation of the Kingdom

iv) The Transfiguration of Jesus

v) The Institution of the Eucharist at the Last Supper

Pope John Paul II, said that it fully brought out “the Christological depth of the Rosary” by including “the mysteries of Christ’s public ministry between his baptism and his passion.”

native americans suffered high rates of poverty and unemployment.

during the late 1960s and early 1970sthe need for political militancy grew among the native americans. throughout the 1960s, they had been the nation's poorest minority group, the most deprived group, according to practically every socioeconomic measure. in 1970, the indian unemployment rate was 10 times the national average, and 40 percent of the native american people were below the poverty line.

not sure might be he acquired the entire oregon territory from great britain