Can you take 30 seconds out of your day and help make a 2020 world's fair in Los Angeles a reality? It'd be the first world's fair in Los Angeles ever, and the first world's fair in the United States in nearly 40 years. Every single signature is needed. Add your voice and help make this happen. Marking the 170th anniversary of California and the 240th anniversary of Los Angeles, the 2020 world's fair will be a very special event.