Several historical groups have played significant roles in the animal rights movement:
Society for the Prevention of Cruelty to Animals (SPCA) - Established in the early 19th century, this organization aimed to prevent animal cruelty and laid the foundation for future animal rights advocacy efforts.
Animal Liberation Movement - This movement, fueled by Peter Singer's influential book "Animal Liberation" (1975), called for an end to the human exploitation of animals, contributing to the rise of a modern animal rights movement.
Animal Rights Movement - This broader movement, also known as animal liberation or animal advocacy, seeks to end the moral and legal distinction between humans and animals, challenging the status of animals as property and their use in various industries.
You can find more information and explore images related to these movements here: Wikipedia.