I'd heard of Earth before you mentioned it, but no, before my arrival here the name was unfamiliar to me. [She thought she'd made that clear, but apparently not.]

Common. The main tongue of the Empire. [And now she pauses to reflect on this. To be perfectly honest, she hasn't given much thought to the ease of communication on Tu Vishan, despite the widely differing origins she has from most of its other inhabitants. Though it would make sense that Eshai - and now Evandau - would make certain the foreigners summoned would be able to coordinate. They were capable of bringing people across worlds, after all.] Which is either remarkably similar to the language that you speak, or there is some force in play allowing us to communicate through otherwise insurmountable linguistic barriers.