Part 63 Article: Timeline My Blog Title: The untold the retold Click On This Link 🔗 To Download Full Quality Size Of This Photo Size 4096 × 4096 8.13 MB Click on PDF to download from Part 1 COLUMN R 1279–1368 AD Yuan Dynasty & Mongol 元朝 16 Emperors Duration: 89 Years • Songhai Empire West Africa 1340–1591 AD From [AI overview]: The defining feature of the trans-Saharan trade was the highly lucrative exchange of West African gold for Saharan salt . West African empires exchanged vast quantities of abundant gold for essential rock salt from the Saharan desert. This network connected sub-Saharan Africa to the Mediterranean using massive camel caravans and facilitated profound cultural and religious diffusion. West Africa (such as the regions controlled by the Mali and Songhai empires) possessed massive gold deposits but lacked salt, which was critical for preserving food and health. The Sahara Desert was rich in salt but lacked gold, creating a perfect interdepen...
Article: Global Environments My Blog Title: What Scientific Ways to Cope with Global Environment Issues? PDF Consulted References is in What Are Global Environment Issues? Scientists, United Nations, and National Regulation find scientific ways to deal with global environment issues. Recent science method is to convert plastic waste into asphalt road substance. This process will divert plastic waste from disposal in the ocean to on-land road construction material. The RMIT University-led project—supported by the Australian Research Council incorporates the recycled plastic waste from consumers and industries into asphalt road mixture. The recycled substance from plastic waste is more durable in rutting and fatigue resistance than conventional asphalt material. To tackle global Carbon Dioxide emission, sustainable development projects have been initiated by United Nations. The objective is to reduce worldwide Carbon Dioxide released into the atmosphere. Reduction in CO2 emissi...