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240s

Centuries: 2nd century - 3rd century - 4th century

Decades: 190s - 200s - 210s - 220s - 230s - 240s - 250s - 260s - 270s - 280s - 290s

Years: 240 241 242 243 244 245 246 247 248 249

Events:

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Child directed speech

... age of the child. For instance, speech to babies who are too young to understand individual words tends to be rather high pitched and musical. Mothers in particular, ...