Problem: Background: Ibn Jubayr (1 September 1145 -29 November 1217; Arabic: bn jbyr), also written Ibn Jubair, Ibn Jobair, and Ibn Djubayr, was an Arab geographer, traveller and poet from al-Andalus. His travel chronicle describes the pilgrimage he made to Mecca from 1183 to 1185, in the years preceding the Third Crusade.
Context: Ibn Jubayr also travelled to Medina, Mecca, Damascus, Mosul, Acre and Baghdad at Basra he saw how Indian timber was carefully used to make Lateen sail ships, returning in 1185 by way of Sicily. His path was not without troubles, including a shipwreck. On both occasions he travelled on Genoese ships. Frequently quoted is Jubayr's famous description of Muslims prospering under the Christian crusader Kingdom of Jerusalem: We moved from Tibnin - may God destroy it - at daybreak on Monday. Our way lay through continuous farms and ordered settlements, whose inhabitants were all Muslims, living comfortably within the Franks... They surrender half their crops to the Franks at harvest time, and pay as well a poll-tax of one dinar and five qirat for each person. Other than that they are not interfered with, save for a light tax on the fruit of their trees. The houses and all their effects are left to their full possession. All the coastal cities occupied by the Franks are managed in this fashion, their rural districts, the villages and farms, belong to the Muslims. But their hearts have been seduced, for they observe how unlike them in ease and comfort are their brethren in the Muslim regions under their (Muslim) governors. This is one of the misfortunes afflicting the Muslims. The Muslim community bewails the injustice of the landlord of its own faith, and applauds the conduct of its opponent and enemy, the Frankish landlord, and is accustomed to justice from him. Jubayr travelled to the East on two further occasions (1189-1191 and 1217), without leaving any account. He died on the 29 November 1217 in Alexandria during the second of these trips.
Question: where else did he travel to?
Answer: Ibn Jubayr also travelled to Medina, Mecca, Damascus, Mosul, Acre and Baghdad

Problem: Background: Gavin Christopher Newsom was born in San Francisco, California, to Tessa Thomas (nee Menzies) and William Alfred Newsom III, a retired state appeals court justice and attorney for Getty Oil. He is a fourth-generation San Franciscan. His father is of mostly Irish descent; one of Newsom's maternal great-grandfathers, Scotsman Thomas Addis, was a pioneer scientist in the field of nephrology and a professor of medicine at Stanford University. Newsom is the second cousin, twice removed, of musician Joanna Newsom.
Context: In 2014, Newsom was the only statewide politician to endorse California Proposition 47, a piece of legislation that decriminalized nonviolent offenses like drug and property crimes, turning them into misdemeanors as opposed to felonies. In July 2015, Newsom released the final report of the Blue Ribbon Commission on Marijuana Policy, which he had convened with the American Civil Liberties Union of California in 2013. The report's recommendations to regulate marijuana were intended to inform a legalization measure on the November 2016 ballot. Newsom supported the resulting measure, Proposition 64, which legalized cannabis use and cultivation for California state residents who are 21 or older. In response to pro-enforcement statements made by Press Secretary Sean Spicer, Newsom sent a letter on February 24, 2017, to Attorney General Sessions and President Trump, urging them not to increase federal enforcement against recreational cannabis firms opening up in California. He wrote, "The government must not strip the legal and publicly supported industry of its business and hand it back to drug cartels and criminals ... Dealers don't card kids. I urge you and your administration to work in partnership with California and the other eight states that have legalized recreational marijuana for adult use in a way that will let us enforce our state laws that protect the public and our children, while targeting the bad actors." Newsom responded to comments by Spicer which compared cannabis to opioids saying, "Unlike marijuana, opioids represent an addictive and harmful substance, and I would welcome your administration's focused efforts on tackling this particular public health crisis."
Question: what has been the effect of legalized cannabis on crime?
Answer:
decriminalized nonviolent offenses like drug and property crimes, turning them into misdemeanors as opposed to felonies.