Limitations on tanning. The process of tanning, known as melanogenesis, may take up to 48 hours to start. Therefore, it's recommended that you allow that amount of time to pass between sessions in a tanning bed. Businesses will not allow you to tan for more than 30 minutes in a bed, and less than that for certain beds.
It took Tolstoy six years to write War and Peace, beginning in 1862.
Getting Tom to Market. Mark Twain wrote his story about Tom at three different times: the winter of 1872-73; the spring and summer, 1874; the spring and summer, 1875. He may have set out initially either to burlesque conventional children's books, or to trace Tom's progress all the way into adulthood.