Onlineretail sales have astoundingly topped $4.9 trillion in the United States alone. Additionally, it is expected to grow by over 50% within the next four years. In short, eCommerce businesses are booming. In addition, eCommerce is one of the easier ways to break into the business world for new entrepreneurs. Moreover, an eCommerce company can be operated from home with a much lower startup cost and overhead. But, to separate yourself from the competition and drive eCommerce growth, you need a marketing calendar stat. What is a Marketing Calendar?In simplest terms, marketing calendar…