1930s: The British Mandate over Palestine

The British administration brought a new element to Palestine, the rule of law, or at least attempts to enforce the rule of law. As virtually all Arab-Jewish crime and violence was initiated by the Arabs they saw the British as unfairly supporting the Jews. Saleh in "The Palestinian Issue" refers to these mob attack as 'uprisings' to infer they were political in nature

Its accepted by historians that the persecution of Jews by Muslims was less than that by Christians but there certainly is a documented history of sporadic attacks by Muslim mobs on Jewish communities throughout the Islamic empires. These did not warrant the term 'uprisings' and the British Mandate administrators did not recognise them as such.

• The uprising of al-Quds or Mawsim al-Nabi Musa (Prophet Moses Season) took place on 4-10/4/1920 in Jerusalem (five Jews were killed and 211 were injured, compared to four Arabs were killed and 24 injured)
  Wikipedia: "The riots coincided with and are named after the Nebi Musa festival, which was held every year on Easter Sunday. Arab religious leaders gave speeches during the festival (in which large numbers of Muslims traditionally gathered for a religious procession) that included slogans referencing Zionist immigration and previous confrontations over outlying Jewish villages in the Galilee. On Monday, as disturbances grew worse, the Old City was sealed off by British authorities and no one was allowed to exit the area. Martial law was declared, but looting, burglary, rape, and murder continued. Several homes were set on fire, and tombstones were shattered. British forces found that the majority of illicit weapons were concealed on the bodies of Arab women"
  
• the Jaffa Uprising erupted between 1-15/5/1921 and included parts of northern Palestine (47 Jews were killed and 146 were injured, while 48 Arabs were killed and 73 injured)
  Wikipedia: "Dozens of British, Arab, and Jewish witnesses all reported that Arab men bearing clubs, knives, swords, and some pistols broke into Jewish buildings and murdered their inhabitants, while women followed to loot. They attacked Jewish pedestrians and destroyed Jewish homes and stores. They beat and killed Jews in their homes, including children, and in some cases split open the victims' skulls … At 1:30 pm, an immigrant hostel run by the Zionist Commission and home to a hundred people who had arrived in recent weeks and days was attacked by the mob … A fourteen-year-old girl and some men managed to escape the building, but each was in turn chased down and beaten to death with iron rods or wooden boards"
  
• al-Buraq Uprising lasted from 15 August until 2/9/1929 and erupted due to the dispute over al-Buraq Wall (The Western Wall of the al-Aqsa Mosque) which the Muslims were defending against Jewish Zionist claims and aggressive attitude. The uprising spread all over Palestine, where 133 Jews were killed and 339 were injured, and 116 Arabs were killed and 232 were injured.
  Wikipedia: As a result of Arab rioting throughout Palestine, the British established a Commission of Inquiry whose purpose was to determine the cause of the rioting. The Shaw Commission found that the violence occurred due to "racial animosity on the part of the Arabs, consequent upon the disappointment of their political and national aspirations and fear for their economic future."

The Palin Commission that investigated the attacks of 1920 was explicit: "But it is perfectly clear that with these few exceptions the Jews were the sufferers, and were, moreover, the victims of a peculiarly brutal and cowardly attack, the majority of the casualties being old men, women and children."

Most of the Jewish deaths and injuries in these three uprisings were caused by the Arabs, while most of the Arab deaths and injuries were inflicted by the British troops and the British police. Haj Amin al-Hussaini, the mufti of Jerusalem, secretly played a prominent role in both al-Quds and al-Buraq Uprisings. - Mohmsen Mohammed Saleh, The Palestinian Issue

Mohmsen Mohammed Saleh: 483,000 Jews migrated to Palesitne during the British Mandate period and by 1948 they were 646,000 (31.7% of the population) and controlled 6% of the land holding 291 settlements. All the land the Jews purchased was sold by Arabs or Ottomans. Every large landowner knew he was making his tenants, the long-term clients of his family, landless. The fellaheen had already been steadily losing "their" land due to debt, drought and poor farming practices. The patron-tenant relationship was a one-way power relationship.

At the end of the British Mandate period only 25% of the land was registered for private ownership

• 12% of the land was owned by Palestinian Arabs
• 7.5% of the land was owned by Jews