Premise: How to crochet a hooded scarf<br>Create a foundation chain. Attach the yarn to your crochet hook with a slipknot, then work up a foundation chain of 200 chain stitches. [substeps] If you don't know how to make a slipknot or chain stitch, see the " tips " section for instructions.
Hypothesis: it took 7 years to invent the  hooded scarf