Data structuring introduced in ALGOL 68:

ALGOL 68 inspired many new ideas in the subsequent language designs. The most important one was user defined data structure in Pascal.

This data structure innovation was first introduced in ALGOL 68 but the credit went to PASCAL.

ALGOL 68 provided small number of data types and data structures and provided user defined data type where user can combine the default data types to produce the needed type.

Provision for user defined data types was valuable since allowed users to include data abstraction for particular problems...

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