The sinking of Le Patriote off this modern-day country’s coast caused the loss of a hydrogen generator, diminishing the military ballooning regiment’s capabilities. Gaspard Monge theorized a mechanism of mirage formation while in this country, where René Réaumur had recorded observations of artificial chicken incubators dubbed “egg ovens” 48 years prior. Joseph Fourier compiled field reports into the catalog, the Description of [this country], which was published under its (*) “Institute.” A French expedition in this country rediscovered a canal built by Necho II. (10[1])Pierre Bouchard uncovered a slab whose Demotic and Ancient Greek inscriptions Champollion later used to decipher this country’s pictographic script. For 10 points, name this country where Napoleon’s scientific expedition uncovered the Rosetta Stone. ■END■