Mango Languages informational workshop offered by Pitkin County Library. Mango Languages is an online language-learning database. One can learn to speak Spanish, French, German, Mandarin Chinese, Russian and more. Spanish, Polish and Brazilian Portuguese speakers can also use it to learn English. Bring a laptop if you can. 5:30-6:30 p.m. at the library in Aspen. 429-1920.

"Aspen’s Past to Present” by Aspen Walking Tours. Tracing the evolution of Aspen from its humble beginnings to world famous resort. 90 min. 1:30 p.m. (970) 948-4349.

25th Birthday Party hosted by Family Visitor Programs. Young children and their parents are invited to the party at Glenwood Springs Community Center. Event includes music and movement for young children presented by Music Together, dance for little ones with Maurine Taufer. Also: birthday treats and door prizes. Free. 9:45 a.m. at GACC. 945-1234 ext. 10.