[#ChainstateManager-GetHistoricalBlockRange]
= xref:ChainstateManager.adoc[ChainstateManager]::GetHistoricalBlockRange
:relfileprefix: ../
:mrdocs:

Get range of historical blocks to download.

== Synopsis

Declared in `<validation.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[requires_capability(0x7f9513c484a8), requires_capability(0x7f9502de9c48), requires_capability(0x7f950b21c418), requires_capability(0x7f9514bf6408)]]
std::optional<std::pair<CBlockIndex const*, CBlockIndex const*>>
GetHistoricalBlockRange() const;
----

== Return Value

The [first, last]range of historical blocks to download, or std::nullopt if none.


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