 Complete the following phrase:  From the medieval period onward, the Khan al-Khalili area was made up of several major khanswikalas grouped together, with souq streets existing between them. By the end of the Mamluk period in the early 16th century, there were 21 khanswikalas in the district. From al-Ghuris reign onward, the district became associated with Turkish merchants, and during the Ottoman period the Turkish community of Cairo was centered there. In particular, the Khan al-Fisqiya or Wikala al-Qutn, which replaced the original Khan al-Khalili structure, was inhabited by Turkish merchants.During the Ottoman period, the prosperity of Cairos souqs waxed and waned in accordance with local political and international economic conditions. While Cairo was no longer an imperial capital, it nonetheless played a highly important role in the trade networks of the Ottoman Empire. New khanswikalas continued to be built. Unlike the previous Mamluk period, the construction of new commercial buildings began to shift to the west of the Qasaba avenue al-Muizz street  the only area where there was still space to build. New constructions were relatively rare in the 16th century, but became more common again in the 17th century. Many old buildings were also restored, altered, or rebuilt, especially in the 18th century. While new religious complexes were rarely built in contrast with the Mamluk period, many small mosques or prayer areas were installed inside existing khanswikalas. By the end of the 18th century just before 