Assertion: modern mortar | /r/HasProperty | born
Facets:
Source sentences:
text: It was not until the Stokes Mortar was devised by Sir Wilfred Stokes in 1915 during the First World War that the modern mortar transportable by one person was born.
text: It was not until the Stokes Mortar was devised by Sir Wilfred Stokes in 1915 during the First World War that the modern mortar transportable by one person was born.