Ānanda (English spelling) Ananda

Japanese: Ānanda（英語表記）Ananda

…In Buddhism, immediately after the death of Shakyamuni, 500 disciples gathered in Rajagriha, the capital of the Magadha Kingdom, to hold the First Assembly. At that time, it is said that the teachings were compiled around Ananda, Shakyamuni's attendant, and the precepts (Vinaya) were compiled around Upāli. A hundred years later, the Second Assembly was held in Baijali, and the Third Assembly was held in Pataliputra during the reign of King Ashoka. …

From "The Ten Great Disciples"

…When Shakyamuni returned home, he became the first novice monk. (10) Ananda (Ananda in Sanskrit). The first to hear many things. …

*Some of the terminology explanations that mention "Ānanda" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…仏教では釈尊滅後ただちにマガダ国の首都ラージャグリハ(王舎城)で500人の弟子たちが集まって第一結集が開かれた。そのときに釈尊の侍者アーナンダĀnanda(阿難)が中心となって教法が結集され，ウパーリUpāli(優婆離)が中心となって戒律(ビナヤ)が結集されたと伝えられる。その後100年を経てバイジャーリー(毘舎離)において第二結集が行われ，さらにアショーカ王の時代にパータリプトラ(華氏城)において第三結集が行われたといわれる。…