What changes were caused by one of the effects of Guru Arjan's leadership in Sikhism?

Answer 1

Followings events took place during the times of Guru Arjan Dev Ji:

# Made a huge contribution in the number of hymns & finalisation of the Guru Granth Sahib. # Guru Ji contributed a total of 2218 hymns to the Sri Guru Granth Sahib. # Author of Sukhmani Sahib Bani - Prayer for Peace # Compiled and installed for the first time the holy Sikh Book, which at this stage is called Adi Granth, a major achievement. # Built the Golden Temple # Developed Amritsar as a Centre of Excellence. # Enhanced the Structure of Sikh Society by introducing the Masund system # First Sikh Guru to be martyred.