Jyotirao Phule was a social reformer and activist in 19th century India. He is known for his efforts to uplift the lower castes and women in society. Here are some of the reasons why Jyotirao Phule was influential:

1. Caste and social equality: Phule was one of the first prominent voices to challenge the caste system and promote equality among all castes. He believed that the lower castes were oppressed and marginalized by the upper castes and worked towards their upliftment.

2. Women's rights: Phule also advocated for the rights and education of women. He believed in women's empowerment and fought against the subjugation and mistreatment of women in society. He encouraged women's education and started schools for girls.

3. Education: Phule emphasized the importance of education in empowering the marginalized sections of society. He believed that education was the key to breaking the cycle of poverty and discrimination. He established the first school for untouchables in Pune and worked towards providing education to the lower castes.

4. Social reforms: Phule was a proponent of social reforms and worked towards eradicating social evils like child marriage, sati (the practice of widows immolating themselves on their husband's funeral pyre), and the purdah system (seclusion of women). He actively campaigned against these practices and sought to bring about positive change in society.

5. Writing and activism: Phule was an influential writer and used his writings to critique and challenge the prevailing social norms and practices. His book "Gulamgiri" (Slavery) is considered a landmark in Dalit literature and played a significant role in spreading his ideas and inspiring others to fight for social justice.

Overall, Jyotirao Phule's ideas and activism were ahead of his time and continue to inspire social reform movements in India. His work towards caste and gender equality, education, and social reform has had a lasting impact on Indian society.