According to first census of USA (1790) its population was? A. 3 million B. 3.9 million C. 4 million D. 5 million 💾 Save the Page as PDF: 📥𝐃𝐨𝐰𝐧𝐥𝐨𝐚𝐝 𝐍𝐨𝐰! Related Read more articles Previous PostThe Constitution of the United States was written in? Next PostSupreme Court of USA was established in? If the aforementioned Answer is Wrong. Leave a Reply with an authentic source.Cancel reply