The grass at our feet was wild barley. It was the wild einkorn wheat which grew on the hilly flanks of the Zagros Mountains, above the Euphrates valley, above the valley of the river we called River. We harvested the grass with stone sickles, I remember. We found the grasses on the hillsides; we built our shelter beside them and cut them down. That is how he used to look then, that one, moving and living and catching my eye, with the sky so dark behind him, and the wind blowing. God save our life. Highlight historical allusions the author makes in paragraph 14.

What does the author think you know about ancient civilizations? How could you fill in any knowledge gaps?