Split infinitives occur when additional words are included between to and the verb in an infinitive. Many readers find a single adverb splitting the infinitive to be acceptable, but this practice should be avoided in formal writing.
When he was 11 years old, Itachi was also under orders from his father to enroll in the Anbu half a year later. Itachi was praised highly by Fugaku, who spent most of his time grooming Itachi to inherit the title of leader of the Uchiha, and hence inadvertently neglected his younger son.
Madara was born during the Warring States Period, and was the eldest of Tajima Uchiha 's five sons. Madara and his brothers grew up on the battlefield waging constant war with the Uchiha's rivals: the Senju. Three of his brothers died young, leaving Madara with only his younger brother, Izuna.