Who was Hazrat Abu Bakar (R.A.)???

Abu Bakar (R.A.) was the 1st Caliph of Islam. After Prophets, the Noble man Is Abu Bakar (R.A.). They was close Companion of Holy Prophet (PUBH). Abu Bakar (R.A.) was with Holy Prophet(PBUH) during Migration from Makkah to Madinah. Abu Bakar (R.A.) was the richest man of Makkah. He was the 1st man who accepted Islam.