Cithakan:DinaIkiIngSejarah/18 Agustus

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Pierre Janssen

1868 - Pierre Janssen manggih hèlium.
1877 - Asaph Hall manggih Phobos, bulan paling ageng saking Mars.
1945 - Undhang-Undhang Dhasar Negara Republik Indonesia dipunsahaken wonten ing salebeting sidang BPUPKI.

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