Write a sentence using only words that come from Anglo-Saxon. Anglo-Saxon's words:
A, an, and, at, back, by, can, child, day, do, down, early, eat, else, for, from, go, grow, high, how, in, into, job, know, lady, laugh, light, may, me, mother, name, old, or, our, pillow, queen, quick, read, right, shop, strong, the, time, tree, under, up, who, why, woman, world, wrong, year, yesterday

He studied fossils found in sedimentary rock strata. He found that at certain heights or depths certain fossils stop appearing. This was important because it could show when some species went extinct or how did the terrain look at the time when they lived and generally helped both Biology and Geology and numerous other fields of study.