"India, beyond the Ganges," but usually the East Indies, i.e. present-day Malay Archipelago) and "India Minor", from Malabar to Sind. "Farther India" was sometimes used to cover all of modern Southeast Asia. Until the fourteenth century, India could also mean areas along the Red Sea, including Somalia, South Arabia, and Ethiopia (e.g., Diodorus of Sicily of the first century BC says that "the Nile rises in India" and Marco Polo of the fourteenth century says that "Lesser India ... contains ... Abash [Abyssinia]")  In late 19th-century geography, "Greater India" referred to British India, Hindustan (Northwestern Subcontinent) which included the Punjab, the Himalayas, and extended eastwards to Indochina (including Tibet and Burma), parts of Indonesia (namely, the Sunda Islands, Borneo and Celebes), and the Philippines." German atlases distinguished "Vorder-Indien" (Anterior India) as the South Asian peninsula and "Hinter-Indien" as Southeast Asia. "Greater India", or "Greater India Basin" also signifies "the Indian Plate plus a postulated northern extension", the product of the "Indian–Asia collision". Although its usage in geology pre-dates Plate tectonic theory, the term has seen increased usage since the 1970s. It is unknown when and where the India–Asia (Indian and Eurasian Plate) convergence occurred, at or before 52 Million years ago. The plates have converged up to ± . The upper crustal shortening is documented from geological record of Asia and the Himalaya as up to approximately less. Indianization is different from direct colonialism in that these Indianized lands were not inhabited by organizations from the Indian subcontinent, with exceptions such as the Chola invasions of medieval times. Instead, Indian cultural influence from trade routes and language use slowly permeated through Southeast Asia, making the traditions a part of the region. The interactions between India and Southeast Asia were marked by waves of influence and dominance. At some points, the Indian culture solely found its way into the region, and at other points, the influence was used to take over. The concept of the Indianized kingdoms, a term coined by George Coedès, describes Southeast Asian principalities that flourished from the early common era as a result of centuries of socio-economic interaction having incorporated central aspects of Indian institutions, religion, statecraft, administration, culture, epigraphy, literature and architecture.