sentences:  In 1884 the "Portsmouth Times" gained a sister paper called the "Evening Mail" which was later renamed to the "Southern Daily Mail".On 21 December 1872 a major scientific expedition, the Challenger Expedition, was launched from Portsmouth.While an extensive number of subscription libraries were formed in Portsmouth in the early part of the 19th century Portsmouth was trailed many other cities in the provision of public libraries the first not being opened until 1884.