What survives today of
“What the World needs most is about 1,000 more dead languages – and one more alive.”
The 850 core words of Basic English are found in Wiktionary's Basic English word list. This core is theoretically enough for everyday life. However, Ogden prescribed that any student should learn an additional 150-word list for everyday work in some particular field, by adding a list of 100 words particularly useful in a general field (e.g., science, verse, business, etc.), along with a 50-word list from a more specialized subset of that general field, to make a basic 1000-word vocabulary for everyday work and life.