The battle of the Vuelta de Obligado was a warlike confrontation between the forces of the Argentine Confederation and an Anglo-French squad that tried to navigate the Argentine inland rivers. It took place on November 20, 1845 on the waters of the Paraná River, near the Buenos Aires town of San Pedro and within the framework of the Anglo-French blockade of the Río de la Plata (1845-1850).

To many, Christmas is the most wonderful time of year, but to sellers on Amazon, it can also be the most stressful. While December might seem like an ideal time to boost sales, peak demand and cut-throat competition make for a challenging — not to mention costly — period...