- The Bab-el-Mandeb (Arabic: باب المندب, lit. ‘Gate of Lamentation’, Tigrinya: ባብ ኣል ማንዳብ), the Gate of Grief or the Gate of Tears, is a strait between Yemen on the Arabian Peninsula and Djibouti and Eritrea in the Horn of Africa. It connects the Red Sea to the Gulf of Aden and by extension the Indian Ocean.
- Flint (Wikipedia)
Flint, occasionally flintstone, is a sedimentary cryptocrystalline form of the mineral quartz, categorized as the variety of chert that occurs in chalk or marly limestone. Historically, flint was widely used to make stone tools and start fires.