The crossword solutions for the term 'AND ALL FOR ONE' is a reference to the famous motto of the Three Musketeers, a novel written by Alexandre Dumas in 1844. The novel follows the adventures of three musketeers, Athos, Porthos, and Aramis, who are loyal friends and fight together for justice and honor. The phrase 'all for ONE and ONE for all' is a testament to their friendship and loyalty, and has become a popular phrase in modern culture.