According to the UC website, 2 years of history is required by all International applicants.
Below are the options to fulfill this requirement:
SAT Subject Examination:
U.S. History: Score of 550 satisfies one year.
World History: Score of 540 satisfies one year.
AP or IB Examination:
U.S. History: score of 3, 4 or 5 on the AP U.S. History exam;
score of 5, 6 or 7 on the IB History of the Americas HL exam
U.S. Government: Score of 3, 4 or 5 on the AP Exam satisfies a half year.
World History/Cultures/Geography: score of 3, 4 or 5 on the AP exam in European History, World History or Human Geography; score of 5, 6 or 7 on the IB History HL or Geography HL exam
@Danielstrut: The UC’s are aware that not all required courses are available to all International applicants, so I would email admissions and ask what they would consider acceptable based on your curriculum. A 550/540 score for the SAT subject tests are not very difficult to achieve if you just do a little preparation. Please update if you find out additional information regarding this requirement.