Final answer:
The technology that enabled early hominins to traverse geographical barriers included advanced stone tool-making, which facilitated hunting and shelter construction, and the creation of seagoing vessels for transoceanic travel. These are also indicative of the social and cognitive skills likely involved in the development of early human language.
Step-by-step explanation:
Early hominins such as Homo sapiens demonstrated remarkable capabilities in migration and technology. Around 18,000 years ago, during the last ice age when sea levels were significantly lower, these early humans made their way across what is called Beringia, the land bridge that connected eastern Russia to Alaska. Their ability to adapt to various climates aided in their global dispersion.
The technology that allowed hominins to cross geographic barriers included the development and use of stone tools for building shelters and hunting, as well as the innovation of seagoing vessels like canoes for transoceanic voyages. These advancements reflect the comprehensive cognitive and social abilities that early humans possessed, paralleling the emergence of language and complex societal structures.
As Homo erectus began crafting distinctive hand axes approximately 1.6 million years ago, a proto-language possibly emerged to facilitate the teaching and learning of such advanced tool-making techniques. This development of language could be considered another form of technology, facilitating communication and further advancing the survival and spread of homo sapiens.