Only Sunnis agreed on Abu Bakr as first Caliph after prophet Muhammad death. The Shiites believed that the Caliph should from the prophet family and accordingly they supported Ali to be the first caliph and not Abu Bakr. However, the Shiites accepted the majority selection of Abu Bakr and supported him and Ali (God pleased with him) was a closeadviser to Abu Bakr.
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Answer 1Yes. However, there was no real split between Shiites and Sunnis. It is just some different views over some side issues that are not critical.Answer 2No. The split between Sunnis and Shiites occurred nearly 30 years earlier when Abu Bakr was elected by the Shoura Council to the position of Caliph against the will of Ali's supporters. Those supporters rejected the decision of the Shoura Council and became the Shiites. The Battle of Karbala crystallized this division since Ali had, by then, been assassinated, and his son Hussein (who was the next candidate supported by the Shiites) was butchered by the Caliph Yazid I without Sunnis rejecting Yazid's right to the Caliphate.
I am not aware of any Shiite who hates Caliph 'Ali. Perhaps you are asking why some Shiites hate Caliphs Abu-Bakr, 'Omar, and 'Othman. Those Shiites who do opposed these leaders do so because they believe that Mohammed intended 'Ali to succeed him and these three individuals conspired with other Muslims to prevent 'Ali's ascendance as Caliph. They consider the shura or election that led to Abu-Bakr's appointment and the direct appointments of 'Omar and 'Othman to be a violation of the true nature of Mohammed's succession.
abu bakr lived in mecca
Said Mahmoud Abu Bakr
Said Abu Bakr's birth name is Said Mahmoud Abu Bakr.
Abu Bakr was born in Mecca on 573 A.D
Abu Bakr Khairat died in 1963.
Abu Bakr Khairat was born in 1910.
Abu Bakr Effendi was born in 1835.
Abu Bakr Effendi died in 1880.
Omar Abu Bakr was born in 1972.
Abu Bakr Alahdal was born in 1979.