Read the passage below carefully:
Historically, indigenous West African languages were preserved predominantly through oral traditions, where community elders transmitted folklore, historical narratives, and ethical values across generations without formal textual documentation. With the advent of colonial education systems in the nineteenth century, European languages became the primary media of instruction, leading to a gradual decline in institutional support for native dialects. In response to mounting concerns over linguistic extinction during the late twentieth century, regional scholars initiated comprehensive codification projects to create standardized orthographies and dictionaries for previously unwritten languages. Building upon these structural foundations, modern digital initiatives now utilize digital archiving tools and mobile applications to engage younger populations, thereby securing the structural continuity and contemporary relevance of these African languages.
Arrange the central key points of the passage in the correct logical sequence that reflects the author's argument from historical background to modern developments.
- 1Traditional oral transmission served as the primary mechanism for preserving indigenous cultural heritage.
- 2Colonial education systems diminished institutional support for local languages by prioritizing European tongues.
- 3Scholars developed standardized orthographies and dictionaries to prevent native language extinction.
- 4Digital archiving and mobile tools were introduced to promote linguistic continuity among youth.