What year was the natural disaster at San Luis?

Which of present day states bordering the pacific ocean existed as a state in 1850? What cave in South Dakota is part of the world's longest cave system? Did cities along the Atlantic coast grow in importance because of trade? Which ocean borders British Columbia? The Sahara Desert is located on which continent? Who has climbed the mount Everest for maximum number of time? What are riffles? What is the driest month in NJ? What is the cost of 1 acre of conifer forest? Are beaches referred as temporary features yes or no and why? What do they trade in the Indian trade network? What river flows through concord? What was Stonehenge used for 5000 years ago? What is the Sydney Harbour Bridge suicide rate? Where is the Johnson County Museum Of History in Franklin Indiana located? Does Hawaii have clear ocean water? What is the unemployment rate of Gibraltar? What type of oppression does the broken chains signify? Where can you go between San Francisco International airport and San Francisco for dinner with a view of the Golden Gate Bridge? Did the transcontinental railroad really reach the pacific ocean?