29 October 1913
Hundreds of men, women and children led by Mahatma Gandhi marched from Newcastle, Natal Colony (now KwaZulu Natal)  into the Transvaal to purposefully defy the Immigrants Regulation Act of 1913 (Act no. 22). Gandhi was followed by two parties led by Thambi Naidoo and Albert Christopher. This marked one of the greatest episodes in South African history. He was arrested the following day at Palmford. Prior to this march, Thambi Naidoo mobilised the Indian community at Newcastle to start the Satyagraha Campaign (Passive Resistance Campaign). In this public meeting, Naidoo represented the Satyagraha pioneer, Gandhi.
References

South African History Online,‘Thambi Naidoo mobilises the Indians’, [online], Available at www.sahistory.org.za [Accessed: 28 October 2013]|University of KwaZulu Natal, ‘Resistance Begins’, [online], Available at scnc.ukzn.ac.za [Accessed: 28 October 2013]