Armenia, never effectively conquered by the Macedonians, was left in the hands of native princes, tributary only when the Seleucid court was strong enough to compel.
The British government (the Asquith cabinet) came to the conclusion that another expedition against the mullah would be useless; that they must either build a railway, make roads and effectively occupy the whole of the protectorate, or else abandon the interior completely.
The state board of health was the first one effectively organized (1855) in the United States.
The cucujo or Cuban firefly (Pyrophorus noctilucus) gives out so strong a light that a few of them serve effectively as a lantern.
The enthusiastic spirit of reform which heralded the accession of the latter sultan never altogether died out, and from about the last decade of the 19th century has been rapidly and effectively growing in force and in method.